Update handling of dataflow version

Author: Corneil du Plessis

.github/workflows/release-worker.yml

@@ -70,7 +70,8 @@ jobs:
           -Dartifactory.publish.artifacts=false \
           -DnewVersion='${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}' \
           -B
-        echo BUILD_ZOO_HANDLER_spring_cloud_dataflow_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout) >> $GITHUB_ENV
+        BUILD_ZOO_HANDLER_spring_cloud_dataflow_version=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
+        echo BUILD_ZOO_HANDLER_spring_cloud_dataflow_version=$BUILD_ZOO_HANDLER_spring_cloud_dataflow_version >> $GITHUB_ENV
         echo "::notice ::set dataflow.version=${BUILD_ZOO_HANDLER_spring_cloud_dataflow_version}"
         jfrog rt mvn versions:set-property \
           -gs .github/settings.xml \