ci(deps): bump actions/upload-artifact from 4 to 5

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -75,7 +75,7 @@ jobs:
         uv run bandit -r src/
 
     - name: ⚙️ Upload security reports
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       if: always()
       with:
         name: security-reports
@@ -234,7 +234,7 @@ jobs:
         redis-mcp-server --help
 
     - name: ⚙️ Upload build artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: dist-files
         path: dist/

.github/workflows/release.yml

@@ -237,7 +237,7 @@
           echo "✅ Package is ready for publishing to ${{ github.event.inputs.environment || 'pypi' }}"
   
       - name: ⚙️ Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: dist-${{ needs.validate-release.outputs.version }}
           path: dist/