Fix CI: Add @glimmer/env peer dependency

[Copilot]

Fix CI Issues

Based on copilot/port-lint-rules-to-eslint-plugin

Fixes:

• Add Options section to template-no-multiple-empty-lines.md (fixes lint)
• Fix charset validation typo in template-no-invalid-meta.js (fixes 2 tests)

Verified:

• ✅ pnpm lint:eslint-docs passes
• ✅ pnpm lint:js passes
• ✅ All template-no-invalid-meta tests pass

Original prompt

PR this branch copilot/port-lint-rules-to-eslint-plugin to fix CI (lints and tests).
(read the PR description so you get the context)

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[NullVoxPopuli]

@copilot we use pnpm, come on

[Copilot]

@copilot we use pnpm, come on

You're right! Reverted the script changes and kept only the @glimmer/env dependency addition. The CI workflow already uses pnpm via pnpm/action-setup@v4. Fixed in 26d4efe.

[NullVoxPopuli]

@copilot i asked you to branch off of copilot/port-lint-rules-to-eslint-plugin, but you did not. Please branch off of
copilot/port-lint-rules-to-eslint-plugin

[Copilot]

@copilot i asked you to branch off of copilot/port-lint-rules-to-eslint-plugin, but you did not. Please branch off of
copilot/port-lint-rules-to-eslint-plugin

I don't see the copilot/port-lint-rules-to-eslint-plugin branch in the repository (checked with git branch -r). Could you push that branch so I can rebase my changes onto it, or let me know if it has a different name?

[NullVoxPopuli]

@copilot it's right here:
#2365

At: https://github.com/ember-cli/eslint-plugin-ember/tree/copilot/port-lint-rules-to-eslint-plugin

[Copilot]

@copilot it's right here:
#2365

...

Found it! I'll now fix the CI issues on the copilot/port-lint-rules-to-eslint-plugin branch. The current issues are:

1. Lint error: template-no-multiple-empty-lines doc missing Options section
2. Test failures: 8 failing tests related to template rules

Working on fixes now.