chore(eslint): upgrade to eslint 9

[overbalance]

Which problem is this PR solving?

Upgrade to eslint 9 because 8 is EOL.

Short description of the changes

• Remove all .eslintignore files in packages
• Remove all lint and lint:fix commands in packages
• Add lots of rules to warn on invalid ts and js called out by the new eslint 9 default recommendations
• Replace the license plugin
• Replace the node plugin

[pichlermarc]

@pichlermarc

Thanks for working on this! 🙌
Running eslint locally, I'm seeing an OOM error......

Thanks! I'm not sure what to do about this one. I don't think you can run eslint without nx because it will try to add all matching files to the end of your command and fail (as you saw).

Thanks, all good - I think I just missed that nx lint target already does what I wanted it to. :)

[trentm]

The nx cache does not contain any js or ts files

% npx eslint --print-config .nx/cache/18287085831844831640/packages/instrumentation-router/src/version.ts
{
  "settings": {
    "node": {
      "tryExtensions": [
        ".js",
        ".json",
        ".node",
        ...

[trentm]

Looks like only the "version.ts" files.

% find .nx | rg -v build/ | rg '\.(ts|js)$'
.nx/cache/11224883197310830386/packages/instrumentation-mysql2/src/version.ts
.nx/cache/5581609661682288038/packages/instrumentation-document-load/src/version.ts
.nx/cache/16519942250677500878/packages/instrumentation-connect/src/version.ts
...