[core][compiled graphs] Support nsight.nvtx profiling

[ruisearch42]

Why are these changes needed?

With the feature flag turned on, Compiled Graph uses nvtx to automatically annotate and profile function calls during each actor's execution loop.
NVTX documentation: https://nvtx.readthedocs.io/en/latest/install.html

Before (no CPU profiling info):

After (with CPU profiling info):

Will add Ray docs in a separate PR.

Related issue number

Part of #49390

Checks

• I've signed off every commit(by using the -s flag, i.e., git commit -s) in this PR.
• I've run scripts/format.sh to lint the changes in this PR.
• I've included any doc changes needed for https://docs.ray.io/en/master/.
  • I've added any new APIs to the API Reference. For example, if I added a
    method in Tune, I've added it in doc/source/tune/api/ under the
    corresponding .rst file.
• I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
• Testing Strategy
  • Manually tested the profile is generated and looks good
  • Unit tests
  • Release tests
  • This PR is not tested :(

[kevin85421]

Nice!