Bump the github-actions group with 2 updates

Bumps the github-actions group with 2 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


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

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

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: Build docs
         run: uv run sphinx-build -W --keep-going -b html src _build
       - name: Upload Documentation Artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: greenbone-community-docs-from-pr
           path: _build/

.github/workflows/deployment.yml

@@ -36,7 +36,7 @@ jobs:
           rm -rf ${{ inputs.doc_root }}
           mkdir -p ${{ inputs.doc_root }}
       - name: Download Documentation Artifact
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: ${{inputs.artifact_name }}
           path: ${{ inputs.doc_root }}

.github/workflows/github-pages.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Build docs
         run: uv run sphinx-build -b html src _build
       - name: Upload Documentation Artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: greenbone-community-docs
           path: _build/