JDK 11+ - fix push Action attempt 4

Author: frantuma

.github/workflows/maven-master.yml

@@ -45,7 +45,7 @@ jobs:
         run: |
           export MY_POM_VERSION=`mvn -q -Dexec.executable="echo" -Dexec.args='${projects.version}' --non-recursive org.codehaus.mojo:exec-maven-plugin:1.3.1:exec`
           echo "POM VERSION" ${MY_POM_VERSION}
-          if [[ ! $MY_POM_VERSION =~ ^.*SNAPSHOT$ ]];
+          if [[ $MY_POM_VERSION =~ ^.*SNAPSHOT$ ]];
           then
             ./mvnw clean deploy -U  --settings $HOME/.m2/settings.xml
             docker build --rm=false -t $DOCKER_GENERATOR_IMAGE_NAME:unstable ./modules/swagger-generator