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/pull-request-checks.yaml

@@ -120,19 +120,19 @@ jobs:
       - name: Print ccache stats
         run: ccache -s
       - name: Upload the ebmc binary
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: ebmc-binary
           retention-days: 5
           path: src/ebmc/ebmc
       - name: Upload the hw-cbmc binary
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: hw-cbmc-binary
           retention-days: 5
           path: src/hw-cbmc/hw-cbmc
       - name: Upload the vlindex binary
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: vlindex-binary
           retention-days: 5