feat: omit unused input/enum types when `onlyOperationTypes` is enabled

[nathanregner]

Description

When generating types with onlyOperationTypes: true, unused input types and enums will no longer be generated.

Related #9665

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
  • Arguably, this is how onlyOperationTypes should behave
• [x] Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • On the other hand, it could technically break consumers that import unused types elsewhere in their codebase

Screenshots/Sandbox (if appropriate/relevant):

How Has This Been Tested?

• [x] Added unit tests
• [x] Regenerated example projects
• [x] Tested on a large (non-public, sorry) schema of 10000+ lines where only a small subset is consumed by operations.

Test Environment:

• OS: Linux/MacOS
• NodeJS: 20

Checklist:

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

[changeset-bot[bot]]

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Latest commit: 577a68d7d99d0e80840c1aeef75cecfbb8ea640a

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[valerii-starlight]

Arguably, this is how onlyOperationTypes should behave

+1