fix: Fix minor issue in the foreign key selector (#41235)

Change the isPending state to isLoading.

e2e/studio/playwright.config.ts

@@ -41,7 +41,7 @@ export default defineConfig({
   maxFailures: 3,
   // Due to rate API rate limits run tests in serial mode on platform.
   fullyParallel: !env.IS_PLATFORM,
-  workers: env.IS_PLATFORM ? 1 : 5,
+  workers: env.IS_PLATFORM ? 1 : 3,
   use: {
     baseURL: env.STUDIO_URL,
     screenshot: 'off',