Bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/cicd-3-deploy.yaml

@@ -103,7 +103,7 @@ jobs:
         run: |
           gh release download ${{steps.get-asset-version.outputs.release_version}} -p jekyll-docs-*.tar --output artifact.tar
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: jekyll-docs-${{steps.get-asset-version.outputs.release_version}}
           path: artifact.tar

.github/workflows/scorecard.yml

@@ -59,7 +59,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: SARIF file
           path: results.sarif

.github/workflows/stage-2-test.yaml

@@ -105,14 +105,14 @@ jobs:
         run: |
           make test-unit
       - name: "Save the result of fast test suite"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: unit-tests
           path: "**/.reports/unit"
           include-hidden-files: true
         if: always()
       - name: "Save the result of code coverage"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: code-coverage-report
           path: ".reports/lcov.info"