[ci] run deployments in right environment

Author: DavyLandman

.github/workflows/build.yaml

@@ -12,6 +12,7 @@ on:
 jobs:
   builds:
     runs-on: ubuntu-latest
+    environment: ${{ startsWith(github.ref, 'refs/tags/v') && 'deployments' || '' }} 
     env:
       MAVEN_OPTS: "-Xmx512M -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn -Dorg.slf4j.simpleLogger.showDateTime=true -Djava.awt.headless=true"