support windows paths

Author: enisdenjo

e2e/config-syntax-error/config-syntax-error.e2e.ts

@@ -24,6 +24,6 @@ it('should point to exact location of syntax error when parsing a malformed conf
   ).rejects.toThrowError(
     gatewayRunner === 'bun' || gatewayRunner === 'bun-docker'
       ? /error: Expected "{" but found "hello"(.|\n)*\/custom-resolvers.ts:8:11/
-      : /SyntaxError \[Error\]: Error transforming (.*)\/custom-resolvers.ts: Unexpected token, expected "{" \(8:11\)/,
+      : /SyntaxError \[Error\]: Error transforming .*(\/|\\)custom-resolvers.ts: Unexpected token, expected "{" \(8:11\)/,
   );
 });