feat: impl table_constraints table for information_schema

[killme2008]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

#2931

What's changed and what's your intention?

Main changes, adds table_constraints to information_schema. Refer to https://dev.mysql.com/doc/refman/8.0/en/information-schema-table-constraints-table.html

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 23.19588% with 149 lines in your changes are missing coverage. Please review.

Project coverage is 85.16%. Comparing base (db329f6) to head (7562424).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3698      +/-   ##
==========================================
- Coverage   85.57%   85.16%   -0.41%     
==========================================
  Files         962      963       +1     
  Lines      160274   160464     +190     
==========================================
- Hits       137155   136661     -494     
- Misses      23119    23803     +684     

[tisonkun]

Thank you!