chore(deps): update github artifact actions

Author: renovate[bot]

.github/workflows/maven.long.yml

@@ -31,7 +31,7 @@ jobs:
             ${{ runner.os }}-jdk-${{ matrix.java }}-maven-
       - run: mvn clean install -P"long" --errors --batch-mode
       - name: Archive failure logs
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         if: failure()
         with:
           name: build-log-files

.github/workflows/post-comment.yml

@@ -19,7 +19,7 @@ jobs:
           GITHUB_CONTEXT: ${{ toJson(github) }}
         run: echo "$GITHUB_CONTEXT"
       - name: Download PR Number and Benchmark Comment
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with:
           run-id: ${{ github.event.workflow_run.id }}
           github-token: ${{ secrets.GITHUB_TOKEN }}