Action Update: Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build-pypy.yml

@@ -138,7 +138,7 @@ jobs:
       - name: Upload PyPy to Artifacts
         if: steps.file-check.outputs.STATUS == 404
         # Leave with v3 so we can use the same name for the artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: pypy-${{ env.ARCH }} 
           path: ./output