GitHub actions CI process skip GPG plugin

.github/workflows/ci.yml

@@ -44,9 +44,6 @@ concurrency:
   group: ${{ github.event_name }}-${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
-env:
-  MAVEN_OPTS: -Dspotless.apply.skip=true -Dskip.gpg=true
-
 jobs:
   unix:
     name: JDK ${{ matrix.java.version }} - on ${{ matrix.os }}
@@ -65,4 +62,4 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Build with Maven
-        run: echo y | mvn clean install
+        run: echo y | mvn clean install -Dskip.gpg=true -Dspotless.apply.skip=true