feat(fuzz): add create database target

[CookiePieWw]

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 mentioned in #3626 (comment), part of #3174.

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 95.83333% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 84.85%. Comparing base (34b1427) to head (174276a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3675      +/-   ##
==========================================
- Coverage   85.14%   84.85%   -0.30%     
==========================================
  Files         949      949              
  Lines      158555   158629      +74     
==========================================
- Hits       135006   134600     -406     
- Misses      23549    24029     +480     

[WenyXu]

Nice done!👍 Let's add it in the CI config.

greptimedb/.github/workflows/develop.yml

Lines 120 to 126 in 3e1a125

	fuzztest:
	name: Fuzz Test
	needs: build
	runs-on: ubuntu-latest
	strategy:
	matrix:
	target: [ "fuzz_create_table", "fuzz_alter_table" ]

[tisonkun]

Thanks for your contribution!

Testing is hard. You did a good job 🥳