chore: http client healthcheck

[denyszhak]

What does this PR address?

Fixes #3315

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[aarnphm]

LGTM. Would kindly request if you can write a quick test for this.

You can write the test under any of the test/e2e/bento_[grpc|http]_server.

[codecov]

Codecov Report

Merging #3636 (04d81fa) into main (45cf38a) will increase coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #3636      +/-   ##
==========================================
+ Coverage   31.86%   31.98%   +0.12%     
==========================================
  Files         146      146              
  Lines       12014    12039      +25     
  Branches     1977     1989      +12     
==========================================
+ Hits         3828     3851      +23     
+ Misses       7917     7915       -2     
- Partials      269      273       +4     

Impacted Files	Coverage Δ
src/bentoml/_internal/client/http.py	39.60% <100.00%> (+4.49%)	⬆️
src/bentoml/_internal/configuration/v1/__init__.py	47.72% <0.00%> (-1.11%)	⬇️
src/bentoml/_internal/configuration/containers.py	47.57% <0.00%> (-0.86%)	⬇️
src/bentoml/_internal/io_descriptors/pandas.py	39.23% <0.00%> (-0.44%)	⬇️
src/bentoml/_internal/io_descriptors/numpy.py	42.59% <0.00%> (-0.40%)	⬇️
src/bentoml/bentos.py	36.58% <0.00%> (ø)
src/bentoml/models.py	77.04% <0.00%> (ø)
src/bentoml/exceptions.py	87.50% <0.00%> (ø)
src/bentoml/_internal/frameworks/keras.py	0.00% <0.00%> (ø)
src/bentoml/_internal/server/runner_app.py	0.00% <0.00%> (ø)
... and 7 more

[denyszhak]

LGTM. Would kindly request if you can write a quick test for this?

You can write the test under any of the test/e2e/bento_[grpc|http]_server.

WDYT if I move simple_service feature on the level above unit and e2e tests? or do you want me to create a separate Service instance for client test

[aarnphm]

Lets keep the simple_service fixture in unit, and you can write a simple client test under e2e instead.

No need to create a separate Service instance. The e2e service test will setup everything.

[denyszhak]

Lets keep the simple_service fixture in unit, and you can write a simple client test under e2e instead.

No need to create a separate Service instance. The e2e service test will setup everything.

Thanks, that makes sense, didn't know the load() API, please check

[aarnphm]

Some finals comments. Otherwise LGTM

[aarnphm]

Thanks for the contribution.