enhancement(internal_logs source): Add option to rate limit internal_logs sources

[bruceg]

Summary

The broadcast channel used to feed all internal_logs sources had always been rate limited at the same time as the console logs. This was recognized in #24218 as a bug and the rate limit was removed to provide all such sources with the full feed of internal logs. However, as some components can emit an overwhelming number of logs, applying a rate limit to this channel may be desirable as well. This change re-introduces the broadcast channel rate limit as a new command-line option with a separate window seconds value from the console limit.

Vector configuration

How did you test this PR?

Unit tests are included.

Change Type

• Bug fix
• New feature
• Dependencies
• Non-functional (chore, refactoring, docs)
• Performance

Is this a breaking change?

• Yes
• No

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the no-changelog label to this PR.

References

Notes

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