Update GitHub Artifact Actions

Author: renovate[bot]

.github/workflows/pipeline.yml

@@ -100,7 +100,7 @@ jobs:
         run: ./gradlew dokkaHtml
       - name: Upload Documentation as Artifact
         if: matrix.os == 'ubuntu-latest' && github.ref == 'refs/heads/main'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: documentation
           path: docs/docs
@@ -126,7 +126,7 @@ jobs:
           pip install mkdocs-minify-plugin
           pip install mkdocs-git-revision-date-localized-plugin
       - name: Download Documentation Artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v7
         with:
           name: documentation
           path: docs/docs