Fix: Export opts as env variables in maven GHA workflow

Issue-ID: CIMAN-33
Change-Id: Id1148421ea3fda485c8b4e05797af6aade7a4b47
Signed-off-by: Jessica Wagantall <[email protected]>

.github/workflows/gerrit-merge.yaml

@@ -81,15 +81,14 @@ jobs:
       GERRIT_PROJECT: ${{ inputs.GERRIT_PROJECT }}
       GERRIT_REFSPEC: ${{ inputs.GERRIT_REFSPEC }}
       # yamllint disable rule:line-length
-      ENV_VARS: "{}"
+      ENV_VARS: "{MAVEN_OPTS: --add-opens=java.base/java.util=ALL-UNNAMED}"
       ENV_SECRETS: "{}"
       JDK_VERSION: "17"
       MVN_PHASES: "clean install dependency:tree com.sonatype.clm:clm-maven-plugin:2.41.0-02:index"
       MVN_OPTS: >-
         -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
         -Dmaven.repo.local=/tmp/r -Dorg.ops4j.pax.url.mvn.localRepository=/tmp/r
         -DaltDeploymentRepository=staging::default::file:"${GITHUB_WORKSPACE}"/m2repo
-        -DMAVEN_OPTS=--add-opens=java.base/java.util=ALL-UNNAMED
     secrets:
       NEXUS_IQ_PASSWORD: ${{ secrets.NEXUS_IQ_PASSWORD }}