fix: add processing to add -X when TRACE is set

The deploy can fail and debugging it is useful.

templates/gitlab-ci-maven.yml

@@ -358,7 +358,7 @@ stages:
         *-SNAPSHOT)
             log_info "Snapshot version for pom (\\e[33;1m${pom_version}\\e[0m): deploy"
             # shellcheck disable=SC2086
-            mvn $MAVEN_CLI_OPTS $mvn_settings_opt $java_proxy_args $MAVEN_DEPLOY_ARGS
+            mvn ${TRACE+-X} $MAVEN_CLI_OPTS $mvn_settings_opt $java_proxy_args $MAVEN_DEPLOY_ARGS
             ;;
         *)
             log_info "Not snapshot version for pom (\\e[33;1m${pom_version}\\e[0m): skip"