ci(compiler-cli): exempt compiler-cli .bazel files from dev-infra approval (#37558)

Previously, dev-infra approval (via PullApprove) was required for all
.bazel files in the monorepo, including those in packages/compiler-cli.

The compiler-cli package is a little special in this sense:
 * it's not shipped to NPM in the APF
 * it uses lots of internal subpackages to organize and test its code

As a result:
 * changes to compiler-cli BUILD.bazel files are not user visible and
   don't have larger implications for the packages published to NPM,
   unlike changes to other BUILD.bazel files in the repo
 * the requirement for dev-infra approval for BUILD.bazel changes is
   overly burdensome, because compiler-cli build files change more
   rapidly than those of other packages.

This commit exempts the compiler-cli's build files from the requirement
for dev-infra approval. It will be sufficient for such files to be
approved by the normal compiler reviewers.

PR Close #37558

.pullapprove.yml

@@ -1055,7 +1055,7 @@ groups:
     conditions:
       - *can-be-global-approved
       - >
-        contains_any_globs(files.exclude("CHANGELOG.md"), [
+        contains_any_globs(files.exclude("CHANGELOG.md").exclude("packages/compiler-cli/**/BUILD.bazel"), [
           '*',
           '.circleci/**',
           '.devcontainer/**',