Ensure release script and stage-vote-release work

Together our custom release mechanism and this plugin
don't work well. Enable release property so we're not
building snapshots and skip signing for now till we can rework
release flows.

Signed-off-by: Appu Goundan <[email protected]>

Author: loosebazooka

.github/workflows/tag-and-build-release.yaml

@@ -58,8 +58,7 @@ jobs:
 
       - name: Build project
         run: |
-          # override the version in gradle.properties
-          ./gradlew clean :sigstore-java:createReleaseBundle -Pversion=${{ github.event.inputs.release_version }}
+          ./gradlew clean :sigstore-java:createReleaseBundle -Pversion=${{ github.event.inputs.release_version }} -Prelease -PskipSign
 
       - name: Hash Artifacts
         id: hash