feat: no more template repos

[mdonnalley]

Use ejs templates instead of using the hello-world and hello-world-esm template repos

Windows + pnpm tests are failing because of issue with running npm install on node 22. See nodejs/node#52682

@W-15491712@

[mshanemc]

approved as is.

one suggestion in PR form. #1397

[mshanemc]

I don't like this rule at all. () are way nicer than keeping a 2nd variable around to avoid it.

I'd be in favor of turning it off oclif-wide!

[mdonnalley]

oclif/eslint-config-oclif#116

[mshanemc]

QA:

created from outside the oclif repo using ../oclif/oclif/bin/run.js generate testCli1
✅ hello world runs
✅ stuff looks right (pjson, readme, etc)
✅ readme has plugin-plugin in it, so testCli1/bin/run.js plugins install @salesforce/plugin-settings . It installs!
✅ testCli1/bin/run.js config list [that actually works!]

create an ESM plugin using all the flags
../oclif/oclif/bin/run.js generate testCli2 --author mshanemc --description "A Plugin" --module-type ESM --name test-cli-2 --owner oclif --package-manager yarn --repository test-cli-2 --license ToKill --bin testCli2
✅ builds a CLI without prompting me
✅ hello world runs
✅ stuff looks right (pjson, readme, etc) [type: module]
✅ install @salesforce/plugin-settings. It installs! ✅testCli2/bin/run.js` config list