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] <[email protected]>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
         working-directory: ./cs-studio
         run: mvn verify -Dcs-studio=false -Declipse=false -Dtycho.localArtifacts=ignore -Dcsstudio.composite.repo=p2repo -DskipTests=true
       - name: Upload products
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: cs-studio-products
           path: |
@@ -35,7 +35,7 @@ jobs:
           if-no-files-found: error
           retention-days: 3
       - name: Upload p2 repo
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: cs-studio-p2
           path: |