add PROTOCOL_VERSIONs back to release.yml (#11697)

Author: megan07

.github/workflows/release.yml

@@ -8,6 +8,10 @@ on:
 permissions:
   contents: write
 
+env:
+  PROTOCOL_VERSION: "5.0"
+  PROTOCOL_VERSIONS: "5.0"
+
 jobs:
   go-version:
     runs-on: ubuntu-latest