message: build: fix api guardian path for windows
  At the moment, `path.posix.relative` will break paths in windows as it will return something like
  ```
  Error: Source file "../C:/users/alag/_bazel_alag/3tbqurya/execroot/angular/bazel-out/x64_windows-fastbuild/bin/packages/core/core.d.ts" not found
  ```
  PR Close
diff: @@ -191,7 +191,7 @@ function resolveBazelFilePath(fileName: string): string {
  // are not available in the working directory. In order to resolve the real path for the
  // runfile, we need to use `require.resolve` which handles runfiles properly on Windows.
  if (process.env['BAZEL_TARGET']) {
  - return path.posix.relative(process.cwd(), require.resolve(fileName));
  + return path.relative(process.cwd(), require.resolve(fileName));
  }
  return fileName;
  