feat: add plugin meta and support typescript-eslint@7

[JoshuaKGoldberg]

Adds @typescript-eslint/utils@7 as an allowed version, as both 6 and 7 work with this package.

Adds a meta per https://eslint.org/docs/latest/extend/plugin-migration-flat-config#adding-plugin-meta-information as a non-breaking change. Adding in the meta actually fixes #85, since this plugin doesn't expose any preset config anyway.

Also swaps from the long-inactive tsutils to its successor, ts-api-utils. That's what @typescript-eslint/* packages use.

[liquidg3]

@JoshuaKGoldberg - thanks for doing this. I'll have to disable the deprecation plugin for now, just to get the rest of our ecosystem onto eslint 9, but I'll be following this so we can bring it back once it's merged!

[JoshuaKGoldberg]

👋 since it's been a month, ping @gund - any chance you'd have time to look at this?

[gund]

Hey! I'm so sorry it took so long to review this but I finally made some time to review it.
Thanks so much for the upgrade, it's great! Just left one small comment to resolve, otherwise looks good!

[gund]

btw what about these dev dependencies, shouldn't they also be updated to v7?

    "@typescript-eslint/eslint-plugin": "^6.0.0",
    "@typescript-eslint/rule-tester": "^6.0.0",
    "@typescript-eslint/parser": "^6.0.0",

[JoshuaKGoldberg]

Without this:

 $ npm run build

> [email protected] prebuild
> rimraf dist


> [email protected] build
> tsc --build tsconfig.build.json

node_modules/ts-api-utils/lib/index.d.cts:1:8 - error TS1259: Module '"/Users/josh/repos/eslint-plugin-deprecation/node_modules/typescript/lib/typescript"' can only be default-imported using the 'esModuleInterop' flag

1 import ts from 'typescript';
         ~~

  node_modules/typescript/lib/typescript.d.ts:7159:1
    7159 export = ts;
         ~~~~~~~~~~~~
    This module is declared with 'export =', and can only be used with a default import when using the 'esModuleInterop' flag.


Found 1 error.

[gund]

Looks good! Thanks for the updates!

[gund]

Seems like this breaks backwards compatibility with ESlint v7...
I'm not sure if it's even worth fixing, maybe we could drop the support all together?
In which case we need to remove v7 major from the eslint versions here:

eslint-plugin-deprecation/package.json

Line 32 in ae8ca95

"eslint": "^7.0.0 || ^8.0.0",

And also dropping the BC test for v7 from the matrix here:

eslint-plugin-deprecation/.github/workflows/test.yml

Lines 47 to 55 in ae8ca95

	- name: 'Test with Eslint v7'
	cmd: |
	npm i eslint@^7 \
	typescript-eslint-utils-5@npm:@typescript-eslint/utils@^5.57.0
	cat package-lock.json | grep -A 1 \
	-e "\"node_modules/eslint\": {" \
	-e "\"node_modules/typescript-eslint-utils-5\": {" \
	test: npm run test
	build: npm run build

What do you think @JoshuaKGoldberg?

[JoshuaKGoldberg]

I'm ok with that! ESLint v8 has been out for ... quite a while.

[JoshuaKGoldberg]

While we're in the area ... we could do this, I think? So swapping (v7, v8) with (v8, v9)?

Suggested change

	"eslint": "^8.0.0",
	"eslint": "^8.0.0 || ^9.0.0",

[JoshuaKGoldberg]

Or, heh, I suppose that's already covered in #79.

[gund]

LGTM

[github-actions]

🎉 This PR is included in version 3.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀