fix: remove quotes embeded with value

Using this syntax, the `"` is made part of the system property's value.

templates/gitlab-ci-maven.yml

@@ -337,7 +337,7 @@ stages:
       host=$(echo "$host_port" | cut -d':' -f1)
       port=$(echo "$host_port" | cut -s -d':' -f2)
       proto_proxy_args="-D$proto.proxyHost=$host -D$proto.proxyPort=${port:-80}"
-      if [[ "$non_proxy_hosts" ]]; then proto_proxy_args="$proto_proxy_args -D$proto.nonProxyHosts=\"$non_proxy_hosts\""; fi
+      if [[ "$non_proxy_hosts" ]]; then proto_proxy_args="$proto_proxy_args -D$proto.nonProxyHosts=$non_proxy_hosts"; fi
       echo "$proto_proxy_args"
     fi
   }