build(deps): Bump actions/upload-artifact in the actions group

Bumps the actions group with 1 update: [actions/upload-artifact](https://github.com/actions/upload-artifact).


Updates `actions/upload-artifact` from 4.4.2 to 4.4.3
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@8448086...b4b15b8)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/custom-test.yml

@@ -42,7 +42,7 @@ jobs:
           python -m sigstore verify github --cert-identity $IDENTITY --bundle artifact.sigstore.json artifact
 
       - name: Upload the bundle for other clients to verify
-        uses: actions/upload-artifact@84480863f228bb9747b473957fcc9e309aa96097 # v4.4.2
+        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3
         with:
           name: bundle
           path: artifact.sigstore.json