feat: executor to azure custom container

[zac-li]

Notes

• This PR enables executor to run as a Fastapi app in Azure container.
• Unlike Sagemaker, multiple endpoints can be exposed in one container (no validation like SageMaker would be called).
• Tests structure is also restructured; now both sagemaker and azure tests are under csp folder and sharing the same executor fixtures.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 57.89474% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 72.76%. Comparing base (b5793f0) to head (d7d3299). Report is 2 commits behind head on master.

Files	Patch %	Lines
jina/serve/runtimes/servers/http.py	63.63%	4 Missing :warning:
jina/serve/runtimes/asyncio.py	33.33%	2 Missing :warning:
jina/serve/runtimes/worker/http_csp_app.py	0.00%	1 Missing :warning:
jina/serve/runtimes/worker/request_handling.py	50.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #6159 +/- ## ========================================== - Coverage 74.85% 72.76% -2.09% ========================================== Files 152 152 Lines 14142 14156 +14 ========================================== - Hits 10586 10301 -285 - Misses 3556 3855 +299 ``` | [Flag](https://app.codecov.io/gh/jina-ai/jina/pull/6159/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jina-ai) | Coverage Δ | | |---|---|---| | [jina](https://app.codecov.io/gh/jina-ai/jina/pull/6159/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jina-ai) | `72.76% <57.89%> (-2.09%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jina-ai#carryforward-flags-in-the-pull-request-comment) to find out more.

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[JoanFM]

What is the difference between SageMaker and Azure HTTP server?