chore: pin playwright-core to 55 (#988)

1.56.x breaks CI so pin to the latest 1.55.x

Author: achingbrain

package.json

@@ -47,6 +47,6 @@
     "packages/*"
   ],
   "overrides": {
-    "playwright-core": "1.54.1"
+    "playwright-core": "1.55.1"
   }
 }