feat: add description for `--check` flag to build options

[3w36zj6]

Description

I added description for --check flag to CLI build options help.

Related #10224

Type of change

• [x] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• [x] When you build and run with the --help flag, the build options with the added description for the --check flag will be displayed

Test Environment:

• OS: Ubuntu 24.04.1 LTS
• @graphql-codegen/...: latest
• NodeJS: 20

Checklist:

• [x] I have followed the CONTRIBUTING doc and the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules

[changeset-bot[bot]]

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Latest commit: 68e46f7e255e2e915579f81aa7303bd1792f92a9

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