feat!: switch prom remote write to metric engine

[waynexia]

I hereby agree to the terms of the GreptimeDB CLA

What's changed and what's your intention?

Run PromStore with metric engine.

All tables created from prom remote write will use metric engine automatically if the config [prom_store].with_metric_engine is set to true. This PR adds a new parameter to prometheus request URL physical-table for prom remote write to specify which physical table to use. And the default physical table name is greptime_physical_table.

An example of this URL is http://172.17.0.1:4000/v1/prometheus/write?physical_table=my_table_name

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR does not require documentation updates.

Refer to a related PR or issue link (optional)

[codecov]

Codecov Report

Attention: 49 lines in your changes are missing coverage. Please review.

Comparison is base (2bf4b08) 85.82% compared to head (e9ad47f) 85.44%.
Report is 1 commits behind head on main.

❗ Current head e9ad47f differs from pull request most recent head 20bf1bc. Consider uploading reports for the commit 20bf1bc to get more accurate results

Additional details and impacted files

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- Coverage   85.82%   85.44%   -0.38%     
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  Files         840      840              
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- Hits       118183   117849     -334     
- Misses      19521    20071     +550     

[killme2008]

What about using a query parameter instead of an HTTP header?

remote_write:
  - url: "http://localhost:4000/v1/prometheus/write?physical_table=my_physical_table"

It doesn't feel right as an HTTP header; it's actually a request parameter.

[waynexia]

BTW this is not a breaking change. It won't affect existing remote write. Only new metrics will be created in metric engine

[killme2008]

BTW this is not a breaking change. It won't affect existing remote write. Only new metrics will be created in metric engine

From the user's perspective, the behavior is changed after upgrading. And if we don't provide a default physical table name, the users must change theirs Prometheus setting.

[killme2008]

LGTM