chore: upgrade to Playwright 1.12 with its new test-runner

ci/dev/test-e2e.sh

@@ -6,7 +6,7 @@ main() {
   cd test
   # We set these environment variables because they're used in the e2e tests
   # they don't have to be these values, but these are the defaults
-  PASSWORD=e45432jklfdsab CODE_SERVER_ADDRESS=http://localhost:8080 yarn folio --config=config.ts --reporter=list "$@"
+  PASSWORD=e45432jklfdsab CODE_SERVER_ADDRESS=http://localhost:8080 yarn playwright test "$@"
 }
 
 main "$@"