feat: bump ESLint, NodeJS, and TS minimum version requirements

[bradzacher]

BREAKING CHANGE:
Bumps the minimum dependency requirements

Overview

Fixes #8346

Breaking changes:

• Bump the minimum NodeJS version to v18.18.0 - which aligns with ESLint v9's minimum.
• Drop support for NodeJS 19 (same as ESLint v9)
• Bump the minimum TypeScript version to v4.7.5
• Bump the minimum ESLint version to v8.56.0
• Remove backwards-compatability helpers from @typescript-eslint/utils/eslint-utils (getAncestors, getCwd, getDeclaredVariables, getFilename, getScope, getSourceCode)

Other changes:

• Update ESLint types to match the new minimum version.
• Update the playground so it doesn't allow users to select an unsupported TS version.
• Update the docs so that dependency versions are pulled in automatically.

[typescript-eslint]

Thanks for the PR, @bradzacher!

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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✅ Successfully ran 33 targets

• nx test eslint-plugin
• nx test typescript-estree
• nx test utils
• nx test type-utils
• nx test scope-manager
• nx run types:build
• nx test visitor-keys
• nx run repo-tools:postinstall-script
• nx test typescript-eslint
• nx test parser
• nx test rule-schema-to-typescript-types
• nx test repo-tools
• nx test eslint-plugin --coverage=false
• nx test eslint-plugin-tslint
• nx test ast-spec
• nx run-many --target=lint --parallel
• nx test visitor-keys --coverage=false
• nx test eslint-plugin-internal
• nx test type-utils --coverage=false
• nx test utils --coverage=false
• nx run-many --target=build --parallel --exclude=website --exclude=website-eslint
• nx run integration-tests:test
• nx test typescript-estree --coverage=false
• nx run-many --target=typecheck --parallel
• nx test eslint-plugin-internal --coverage=false
• nx test scope-manager --coverage=false
• nx test typescript-eslint --coverage=false
• nx test ast-spec --coverage=false
• nx test eslint-plugin-tslint --coverage=false
• nx test parser --coverage=false
• nx test repo-tools --coverage=false
• nx test rule-schema-to-typescript-types --coverage=false
• nx run repo-tools:generate-configs

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[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (289ee88) 87.80% compared to head (4776a10) 87.84%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8377      +/-   ##
==========================================
+ Coverage   87.80%   87.84%   +0.03%     
==========================================
  Files         398      396       -2     
  Lines       14052    13809     -243     
  Branches     4090     4064      -26     
==========================================
- Hits        12338    12130     -208     
+ Misses       1403     1382      -21     
+ Partials      311      297      -14     

Flag	Coverage Δ
unittest	87.84% <98.09%> (+0.03%)	⬆️

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

Files	Coverage Δ
...lugin-internal/src/rules/plugin-test-formatting.ts	79.19% <100.00%> (-0.24%)	⬇️
packages/eslint-plugin-tslint/src/rules/config.ts	100.00% <100.00%> (ø)
...t-plugin/src/rules/adjacent-overload-signatures.ts	100.00% <ø> (ø)
packages/eslint-plugin/src/rules/array-type.ts	98.52% <100.00%> (-0.05%)	⬇️
packages/eslint-plugin/src/rules/await-thenable.ts	100.00% <ø> (ø)
packages/eslint-plugin/src/rules/ban-ts-comment.ts	97.29% <100.00%> (-0.14%)	⬇️
...ages/eslint-plugin/src/rules/ban-tslint-comment.ts	100.00% <100.00%> (ø)
packages/eslint-plugin/src/rules/ban-types.ts	100.00% <100.00%> (ø)
packages/eslint-plugin/src/rules/block-spacing.ts	100.00% <100.00%> (ø)
packages/eslint-plugin/src/rules/brace-style.ts	95.23% <100.00%> (-0.22%)	⬇️
... and 102 more

[JoshuaKGoldberg]

LGTM! I trust you on the playground selector 🙂 . This is great - really excited to lose the burden of older ESLint support!

[JoshuaKGoldberg]

I ran a few full text regex searches in .ts files and found some older ESLint compat support:

• /eslint.*v7/
• `/eslint.*v8/

Not blocking IMO, but at least something to note as a good followup.

[JamesHenry]

🎉

[bradzacher]

@JoshuaKGoldberg I ended up expanding the scope of this to remove the deprecated property usages as well. Pls re-review sir.

[JoshuaKGoldberg]

heck yes async everywhere

[bradzacher]

everywhere except eslint-plugin-internal. One day we'll have async plugins . . . .

[JoshuaKGoldberg]

🙏

[JoshuaKGoldberg]