Bump actions/upload-artifact from 5 to 6 (#271)

Author: dependabot[bot]

.github/workflows/build-test.yml

@@ -94,7 +94,7 @@ jobs:
         target-folder: coverage
 
     - name: Upload coverage report artifact
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: CoverageReport # Artifact name        
         path: coveragereport # Directory containing files to upload

.github/workflows/depcheck.yml

@@ -69,7 +69,7 @@ jobs:
           # --suppression ./src/dependency-suppression.xml
 
       - name: ⬆️ Upload Test results
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: Depcheck report
           path: ${{github.workspace}}/reports