Upgrade actions/upload-artifact to v4, as v3 is deprecated and will stop working soon.

Author: ianroberts

.github/workflows/pull-request.yaml

@@ -81,7 +81,7 @@ jobs:
 
       - name: Upload Test Results
         if: success() || failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Test Results
           path: |
@@ -103,7 +103,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Upload
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Event File
           path: ${{ github.event_path }}