feat(experimental-utils): remove getComments from ESLint SourceCode types

[JoshuaKGoldberg]

Tackles a small part of #3738: the getComments() API is deprecated so we generally don't want to use it.

Ref: eslint/eslint#14744, eslint/eslint#14769

[typescript-eslint]

Thanks for the PR, @JoshuaKGoldberg!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!

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[codecov]

Codecov Report

Merging #3766 (9d29b60) into v5 (a752638) will decrease coverage by 0.10%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##               v5    #3766      +/-   ##
==========================================
- Coverage   92.68%   92.58%   -0.11%     
==========================================
  Files         327      188     -139     
  Lines       11351     8480    -2871     
  Branches     3201     2607     -594     
==========================================
- Hits        10521     7851    -2670     
+ Misses        369      262     -107     
+ Partials      461      367      -94     

Flag	Coverage Δ
unittest	92.58% <ø> (-0.11%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ges/experimental-utils/src/ts-eslint/SourceCode.ts	100.00% <ø> (ø)
...e-manager/src/definition/TSEnumMemberDefinition.ts
...e-manager/src/definition/TSModuleNameDefinition.ts
packages/scope-manager/src/lib/dom.ts
...kages/scope-manager/src/lib/es2017.sharedmemory.ts
packages/scope-manager/src/lib/es5.ts
packages/scope-manager/src/lib/es2020.ts
packages/scope-manager/src/scope/ModuleScope.ts
packages/scope-manager/src/lib/esnext.array.ts
...src/definition/ImplicitGlobalVariableDefinition.ts
... and 130 more

[nx-cloud]

Nx Cloud Report

CI ran the following commands for commit 9d29b60. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this branch

Status	Command
	nx test @typescript-eslint/eslint-plugin-internal
	nx test @typescript-eslint/eslint-plugin-tslint
	nx test @typescript-eslint/eslint-plugin
	nx test @typescript-eslint/eslint-plugin-tslint
	nx test @typescript-eslint/eslint-plugin
	nx test @typescript-eslint/eslint-plugin-tslint
	nx test @typescript-eslint/eslint-plugin
	nx run-many --target=typecheck --all --parallel
	nx test @typescript-eslint/parser
	nx test @typescript-eslint/experimental-utils
	nx test @typescript-eslint/parser
	nx test @typescript-eslint/scope-manager
	nx test @typescript-eslint/visitor-keys
	nx test @typescript-eslint/typescript-estree
	nx run-many --target=build --all --parallel
	nx test @typescript-eslint/experimental-utils
	nx test @typescript-eslint/scope-manager
	nx test @typescript-eslint/visitor-keys
	nx test @typescript-eslint/typescript-estree
	nx run-many --target=build --all --parallel

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[bradzacher]

lgtm!