Bump actions/upload-artifact from 4 to 5

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

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

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

Author: dependabot[bot]

.github/workflows/gradle-build.yml

@@ -23,7 +23,7 @@ jobs:
     - run: ./gradlew ${{ matrix.task }}
     # upload build output for later inspection, if the build failed
     #  N.B only applies to the last task in the matrix
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v5
       if: failure()
       with:
         name: wholebuild #testreports
@@ -46,7 +46,7 @@ jobs:
     - run: ./gradlew ${{ matrix.task }}
     # upload build output for later inspection, if the build failed
     #  N.B only applies to the last task in the matrix
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v5
       if: failure()
       with:
         name: wholebuild #testreports