revert playwright core changes

src/queries/sql/heatmap/ensureHeatmapSnapshot.ts

@@ -578,13 +578,7 @@ function getSnapshotErrorMessage(error: unknown) {
 }
 
 async function createSnapshotBrowser() {
-  const { chromium } = await import('playwright-core');
-  const endpoint = process.env.PLAYWRIGHT_URL?.trim();
-
-  if (endpoint) {
-    return chromium.connect(endpoint);
-  }
-
+  const { chromium } = await import('@playwright/test');
   return chromium.launch({
     channel: 'chromium',
     headless: true,