Skip pre release triggers. Remove test workflow file.

Author: MaxwellGarceau

.github/workflows/wordpress-plugin-deploy-test-softprops-gh-release-action.yml

@@ -8,6 +8,7 @@ jobs:
   tag:
     name: New release
     runs-on: ubuntu-latest
+    if: ${{ !github.event.release.prerelease }} # Skip job if it is a pre-release
 
     steps:
     - name: Checkout code