added artifactory secrets on release workflow

Author: danielGz

.github/workflows/release.yml

@@ -9,6 +9,9 @@ jobs:
   build:
     name: Release Plugin
     runs-on: ubuntu-latest
+    env:
+      ORG_GRADLE_PROJECT_artifactory_user: '${{secrets.ARTIFACTORY_USER}}'
+      ORG_GRADLE_PROJECT_artifactory_password: '${{secrets.ARTIFACTORY_TOKEN}}'
     steps:
       - name: checkout code
         uses: actions/checkout@v2