refactor!: remove duration type from gRPC

[fengjiachun]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

What's changed and what's your intention?

As the title said.

GreptimeTeam/greptime-proto#158

close #3230

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.

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 85.48%. Comparing base (ed8b136) to head (c05685a).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3825      +/-   ##
==========================================
- Coverage   85.79%   85.48%   -0.32%     
==========================================
  Files         952      952              
  Lines      162684   162393     -291     
==========================================
- Hits       139574   138818     -756     
- Misses      23110    23575     +465     

[tisonkun]

This should be related or closes #3230.

[fengjiachun]

Waiting for: GreptimeTeam/greptime-proto#158

[fengjiachun]

Waiting for: GreptimeTeam/greptime-proto#158

Done

[killme2008]

LGTM