allow additional health checker coroutine for faststream

[lesnik512]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...bootstrap/bootstrappers/faststream_bootstrapper.py	100.00% <100.00%> (ø)
tests/test_fastapi_offline_docs.py	100.00% <100.00%> (ø)
tests/test_faststream_bootstrap.py	100.00% <100.00%> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.