message: ci: do not require g3 checks for the changes in `ngtsc/sourcemaps` folder
  This commit updates ngbot config to avoid requesting google3 presubmit for the changes in
  the `packages/compiler-cli/src/ngtsc/sourcemaps` folder (which is not synced into google3).
  PR Close
diff: @@ -48,6 +48,7 @@ merge:
  - "packages/bazel/src/protractor/**"
  - "packages/bazel/src/schematics/**"
  - "packages/compiler-cli/ngcc/**"
  + - "packages/compiler-cli/src/ngtsc/sourcemaps/**",
  - "packages/docs/**"
  - "packages/elements/schematics/**"
  - "packages/examples/**"
  