cleanup: Use new indentation style for arrays

We've made some progress on transitioning to the modern indentation
style, and for arrays the legacy style is now rare enough to make
a bulk transition feasible.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2200>

js/ui/components/networkAgent.js

@@ -425,10 +425,12 @@ var VPNRequestHandler = class {
 
         let connectionSetting = connection.get_setting_connection();
 
-        let argv = [authHelper.fileName,
-                    '-u', connectionSetting.uuid,
-                    '-n', connectionSetting.id,
-                    '-s', serviceType];
+        const argv = [
+            authHelper.fileName,
+            '-u', connectionSetting.uuid,
+            '-n', connectionSetting.id,
+            '-s', serviceType,
+        ];
         if (authHelper.externalUIMode)
             argv.push('--external-ui-mode');
         if (flags & NM.SecretAgentGetSecretsFlags.ALLOW_INTERACTION)