feat: support ESLint v8

[theoludwig]

What is the purpose of this pull request? (put an "X" next to item)

[ ] Documentation update
[ ] Bug fix
[x] New feature
[ ] Other, please explain:

What changes did you make? (Give an overview)

Support ESLint v8.

Which issue (if any) does this pull request address?

Fixes #728

Is there anything you'd like reviewers to focus on?

Even if #727, @mightyiam, do you still want to review or we can merge/release with another standard maintainer approval?

[jefbarn]

Possible to publish a pre-release version of this for testing? (because the config file is typescript, can't just use the branch directly in eslint config)

[theoludwig]

@jefbarn Yes, we can certainly do a prerelease before a stable release.
I don't have the right to publish on npm, we need to wait an approval from another standard maintainer.

[voxpelli]

I'm going to leave it to @mightyiam to decide on this one, as he is the one driving this part of standard

[flippidippi]

Any updates on this? We are waiting for this to be released so we can upgrade to eslint 8.

[theoludwig]

Any updates on this? We are waiting for this to be released so we can upgrade to eslint 8.

@flippidippi It is blocked by: standard/eslint-config-standard#208

[jefbarn]

For people wanting to start using this, my solution was:

1. Fork the repo
2. Switch to this branch git branch feat/eslint-support-v8
3. Compile the code npm run compile
4. Remove '/lib' from .gitignore
5. Commit and push the /lib folder to your new repo
6. Use the project.json github syntax:
   "eslint-config-standard-with-typescript": "jefbarn/eslint-config-standard-with-typescript#feat/support-eslint-v8"

Though this solution is not great if we need to merge in changes from upstream.

[theoludwig]

@mightyiam This should now be ready! 😄
Do you mind reviewing this PR again and if everything is fine, releasing a new major version of eslint-config-standard-with-typescript, thanks!

[mightyiam]

I'll do my best.

[gutenye]

Any updates on the release? eslint-config-standard is released