Update Java CI Workflow

Remove artifacts sign-in information from the gradle.yml configuration.

Author: puneetbehl

.github/workflows/gradle.yml

@@ -54,14 +54,10 @@ jobs:
       - name: Publish to repo.grails.org
         if: success() && github.event_name == 'push' && matrix.java == '8'
         env:
-          SECRING_FILE: ${{ secrets.SECRING_FILE }}
-          SIGNING_KEY: ${{ secrets.SIGNING_KEY }}
-          SIGNING_PASSPHRASE: ${{ secrets.SIGNING_PASSPHRASE }}
           ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
           ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
         run: |
-          echo $SECRING_FILE | base64 -d > secring.gpg
-          ./gradlew -Dorg.gradle.internal.publish.checksums.insecure=true -Psigning.keyId="$SIGNING_KEY" -Psigning.password="$SIGNING_PASSPHRASE" -Psigning.secretKeyRingFile="secring.gpg" publish
+          ./gradlew publish
           ./gradlew docs:docs
       - name: Determine docs target repository
         if: success() && github.event_name == 'push' && matrix.java == '8'