feat(pipeline): gsub prosessor

[yuanbohan]

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?

implement Elastic Gsub processor

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR requires documentation updates.

[codecov]

Codecov Report

Attention: Patch coverage is 82.87671% with 25 lines in your changes missing coverage. Please review.

Project coverage is 84.88%. Comparing base (2faa6d6) to head (233ece0).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4121      +/-   ##
==========================================
- Coverage   84.94%   84.88%   -0.06%     
==========================================
  Files        1018     1023       +5     
  Lines      178688   179298     +610     
==========================================
+ Hits       151780   152206     +426     
- Misses      26908    27092     +184     

[shuiyisong]

Wait for #4014 get merged first, then we can add some test.

[killme2008]

Almost LGTM