chore: notify language bindings about matcher changes (#15183)

.github/workflows/pr_check_client_side_changes.yml

@@ -5,6 +5,7 @@ on:
       - main
     paths:
       - 'packages/playwright-core/src/client/**/*'
+      - 'packages/playwright-test/src/matchers/matchers.ts'
 jobs:
   check:
     name: Check