Upgrade to upload-artifact@v4 to fix GH Actions

Author: Metadorius

.github/actions/build-phobos/action.yml

@@ -26,7 +26,7 @@ runs:
 
   - name: Upload Artifact
     if: ${{success()}}
-    uses: actions/upload-artifact@v2
+    uses: actions/upload-artifact@v4
     with:
       name: compiled-dll-${{github.sha}}
       path: |