chore(deps): update dependency lints to v6

[renovate]

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This PR contains the following updates:

Package	Type	Update	Change
lints (source)	dev_dependencies	major	^1.0.1 -> ^6.0.0

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Release Notes

dart-lang/core (lints)

v6.0.0

Compare Source

• core:
  • added strict_top_level_inference (#​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

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

v5.0.0

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• 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.

v4.0.0

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• core:
  • added library_annotations (dart-lang/lints#177)
  • added no_wildcard_variable_uses (dart-lang/lints#139)
  • removed package_prefixed_library_names (dart-lang/lints#172)
• recommended:
  • removed library_names (dart-lang/lints#181)
• Updated the SDK lower-bound to 3.1.
• Add a section on upgrading to the latest lint set to the readme.

v3.0.0

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• core:
  • added collection_methods_unrelated_type
  • added dangling_library_doc_comments
  • added implicit_call_tearoffs
  • added secure_pubspec_urls
  • added type_literal_in_constant_pattern
  • added use_string_in_part_of_directives
  • removed iterable_contains_unrelated_type
  • removed list_remove_unrelated_type
• recommended:
  • added unnecessary_to_list_in_spreads
  • added use_super_parameters
  • removed prefer_equal_for_default_values
  • removed prefer_void_to_null
• Add info about which lints have quick fixes to the package's readme.
• Move the list of lint rules from the readme to a separate
  rules.md file.

v2.1.1

• Added the analysis and lints topics to the pubspec file.
• Update the package's readme to include the list of lint rules that
  package:lints/core.yaml and package:lints/recommended.yaml include.

v2.1.0

• Updated the SDK lower-bound to 3.0.
• Removed always_require_non_null_named_parameters from recommended.yaml
  as it is only relevant in Dart pre 2.12 and with Dart 3.0, libraries can
  no longer be opted back that far.

v2.0.1

Compare Source

• Updated documentation for the lib/core.yaml and lib/recommended.yaml
  analysis configurations.

v2.0.0

• Added the following lints to core.yaml:
  • depend_on_referenced_packages
  • null_check_on_nullable_type_parameter
• Added the following lints to recommended.yaml:
  • library_private_types_in_public_api
  • no_leading_underscores_for_library_prefixes
  • no_leading_underscores_for_local_identifiers
  • prefer_interpolation_to_compose_strings
  • unnecessary_constructor_name
  • unnecessary_late
  • unnecessary_null_aware_assignments
  • unnecessary_nullable_for_final_variable_declarations
• Bumped the minimum required Dart SDK version to 2.17

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