chore(deps): update dependency lints to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
lints (source)	dev_dependencies	major	^4.0.0 → ^6.0.0

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Release Notes

dart-lang/core (lints)

v6.1.0

Compare Source

• recommended:
  • added use_null_aware_elements (#​899)
• Run dart format with the new style.

v6.0.0

Compare Source

• core:
  • added strict_top_level_inference (#​836)
• recommended:
  • added unnecessary_underscores (#​856)
• Require Dart 3.8.

v5.1.1

Compare Source

• Updated the SDK lower bound to 3.6.
• Move to dart-lang/core monorepo.

v5.1.0

Compare Source

• core:
  • added unintended_html_in_doc_comment (dart-lang/lints#192)
• Updated the SDK lower bound to 3.6 (dev).

v5.0.0

Compare Source

• recommended:
  • added invalid_runtime_check_with_js_interop_types (dart-lang/lints#188)
  • added unnecessary_library_name (dart-lang/lints#181)
  • removed avoid_null_checks_in_equality_operators (dart-lang/lints#200)
• Updated the SDK lower-bound to 3.5.

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: pubspec.lock

Command failed: dart pub upgrade lints
Because spry_json 1.0.0 depends on spry ^0.5.0 and no versions of spry_json match >1.0.0 <2.0.0, spry_json ^1.0.0 requires spry ^0.5.0.
So, because spry_starter depends on both spry ^3.0.0 and spry_json ^1.0.0, version solving failed.

[medz]

Superseded by #201, which upgrades the starter from the old pre-Dart-3 / pre-file-routing baseline in one validated change.

[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.