Update actions/upload-artifact action to v5

Author: renovate[bot]

.github/workflows/publishToGHPages.yml

@@ -22,7 +22,7 @@ jobs:
           node dist/generate-assets.js
       - name: Run Unit Tests
         run: npm test
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: nrfprogrammer-firmware-images-${{ github.sha }}
           path: assets