cicd: Added grgit credentials

Author: jruaux

.github/workflows/release.yml

@@ -29,6 +29,9 @@ jobs:
       sonatype-username: ${{ secrets.SONATYPE_USERNAME }}
       sonatype-password: ${{ secrets.SONATYPE_PASSWORD }}
       slack-webhook: ${{ secrets.SLACK_WEBHOOK }}
+    env:
+      GRGIT_USER: ${{ secrets.GIT_USER }}
+      GRGIT_PASS: ${{ secrets.GIT_ACCESS_TOKEN }}
 
   docker:
     name: 'Docker'