⬆️ Upgrade dependency lints to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
lints (source)	dev_dependencies	major	^5.1.1 -> ^6.0.0

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Release Notes

dart-lang/core (lints)

v6.0.0

Compare Source

• core:
  • added strict_top_level_inference (https://github.com/dart-lang/core/issues/836)
• recommended:
  • added unnecessary_underscores (https://github.com/dart-lang/core/issues/856)
• Require Dart 3.8.

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Configuration

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[IamPekka058]

This is an preview version of lints and requires a dev version of the dart sdk. Therefore I'll close this issue.

https://pub.dev/packages/lints/versions

[renovate]

Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update. You will not get PRs for any future 6.x releases. But if you manually upgrade to 6.x then Renovate will re-enable minor and patch updates automatically.

If you accidentally closed this PR, or if you changed your mind: rename this PR to get a fresh replacement PR.