qa: Refactor gitlab use

qa/ui/src/lib/stores/auth.js

@@ -27,3 +27,30 @@ export const auth = derived(
   version,
   $version => $version.auth,
 );
+
+function createGitlabStore() {
+  const { subscribe, set, update } = writable(null);
+
+  return {
+    subscribe,
+
+    set,
+
+    update,
+
+    refresh: async () => {
+      const res = await fetch('api/gitlab/token', {headers: {'Accept': 'application/json'}});
+      if (res.status === 200) {
+        const token = await res.json();
+        update((m) => token);
+        return token;
+      } else {
+        update((m) => null);
+        return null;
+      }
+    },
+  };
+
+}
+
+export const gitlab = createGitlabStore();