fix: upgrade deprecated GitHub Actions to v4/v5 and fix MCP test job

actions/upload-artifact@v3 is fully deprecated and causes instant CI
failure. Also upgrades checkout, setup-python, cache, github-script,
and codecov actions to their latest major versions to resolve Node.js 20
deprecation warnings. Adds missing pytest install to MCP Vector DB test
job and pins ruff>=0.15 in CI to match local tooling.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/docker-publish.yml

@@ -44,7 +44,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2
@@ -100,7 +100,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Build CLI image
       run: |

.github/workflows/quality-metrics.yml

@@ -31,10 +31,10 @@ jobs:
       FAIL_THRESHOLD_INPUT: ${{ github.event.inputs.fail_threshold }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python 3.12
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 
@@ -141,7 +141,7 @@ jobs:
         fi
 
     - name: Upload quality reports
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: quality-metrics-reports
         path: quality_*.txt
@@ -150,7 +150,7 @@ jobs:
 
     - name: Post summary to PR
       if: github.event_name == 'pull_request'
-      uses: actions/github-script@v6
+      uses: actions/github-script@v7
       with:
         script: |
           const fs = require('fs');

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: 'recursive'
 

.github/workflows/scheduled-updates.yml

@@ -37,12 +37,12 @@ jobs:
       FRAMEWORKS_INPUT: ${{ github.event.inputs.frameworks }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive
 
     - name: Set up Python 3.12
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 
@@ -167,7 +167,7 @@ jobs:
 
     - name: Upload updated skill
       if: steps.should_update.outputs.update == 'true'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ${{ env.FRAMEWORK }}-skill-updated
         path: output/${{ env.FRAMEWORK }}.zip

.github/workflows/test-vector-dbs.yml

@@ -35,10 +35,10 @@ jobs:
       PYTHON_VERSION: ${{ matrix.python-version }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ env.PYTHON_VERSION }}
 
@@ -76,7 +76,7 @@ jobs:
         "
 
     - name: Upload test package
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: test-package-${{ env.ADAPTOR_NAME }}-py${{ env.PYTHON_VERSION }}
         path: test_skill-${{ env.ADAPTOR_NAME }}.json
@@ -87,16 +87,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python 3.12
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+        pip install pytest
         pip install -e .
 
     - name: Run MCP vector DB tests
@@ -110,10 +111,10 @@ jobs:
     needs: [test-adaptors, test-mcp-tools]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python 3.12
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 

.github/workflows/tests.yml

@@ -11,17 +11,17 @@ jobs:
     name: Code Quality (Ruff & Mypy)
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python 3.12
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install ruff mypy
+        pip install "ruff>=0.15" mypy
         pip install -e .
 
     - name: Run ruff linter
@@ -53,12 +53,12 @@ jobs:
             python-version: '3.10'
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive  # Initialize api/configs_repo submodule
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -68,7 +68,7 @@ jobs:
         echo "$HOME/.local/bin" >> $GITHUB_PATH
 
     - name: Cache pip packages
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt', 'skill_seeker_mcp/requirements.txt') }}
@@ -98,7 +98,7 @@ jobs:
         python -m pytest tests/ --cov=src/skill_seekers --cov-report=xml --cov-report=term
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         file: ./coverage.xml
         flags: unittests

.github/workflows/vector-db-export.yml

@@ -36,12 +36,12 @@ jobs:
       CONFIG_PATH_INPUT: ${{ github.event.inputs.config_path }}
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive
 
     - name: Set up Python 3.12
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.12'
 
@@ -144,7 +144,7 @@ jobs:
 
     - name: Upload vector database exports
       if: steps.check_config.outputs.exists == 'true'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ${{ env.SKILL_NAME }}-vector-exports
         path: |
@@ -153,7 +153,7 @@ jobs:
 
     - name: Upload quality report
       if: steps.check_config.outputs.exists == 'true'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ${{ env.SKILL_NAME }}-quality-report
         path: quality_report_${{ env.SKILL_NAME }}.txt