npm: bump solhint from 5.2.0 to 6.0.0

[dependabot]

Bumps solhint from 5.2.0 to 6.0.0.

Release notes

Sourced from solhint's releases.

v6.0.0

[6.0.0] - 2025-07-04

BREAKING CHANGE

Some rules were removed from the recommended ruleset and other were promoted. See below: Rules revision - #692

🟥 DEMOTED

• payable-fallback: Outdated due to the introduction of receive(); rarely needed in modern Solidity.

✅ PROMOTED

• interface-starts-with-i: Promotes clarity by clearly distinguishing interfaces from contracts.
• gas-calldata-parameters: Encourages optimal memory usage for external functions.
• gas-increment-by-one: Suggests using ++i style for gas-efficient increments.
• gas-indexed-events: Improves event indexing for off-chain systems and reduces gas usage.
• gas-small-strings: Recommends cheaper encoding using bytes32 for short strings.
• gas-strict-inequalities: Helps avoid subtle off-by-one bugs in range conditions.
• gas-struct-packing: Maximizes storage efficiency by suggesting tight struct packing.
• duplicated-imports: Prevents redundant imports that bloat the AST and confuse code structure.
• import-path-check: Ensures all imported files exist and resolve correctly, avoiding runtime errors.
• function-max-lines: Encourages smaller, more readable and maintainable functions.
• constructor-syntax: Enforces modern constructor syntax for consistency and clarity.
• use-natspec: Promotes proper documentation with NatSpec for better audits and readability.

Fixed

• gas-struct-packing false positives - #690
• gas-increment-by-one backward expression - #691
• Typo (thanks to @MarkFizz77)

Added

• use-natspec: Promote the use of natspec and make several checks to enforce it - #689

Changelog

Sourced from solhint's changelog.

[6.0.0] - 2025-07-04

BREAKING CHANGE

Some rules were removed from the recommended ruleset and other were promoted. See below: Rules revision - #692

🟥 DEMOTED

• payable-fallback: Outdated due to the introduction of receive(); rarely needed in modern Solidity.

✅ PROMOTED

• interface-starts-with-i: Promotes clarity by clearly distinguishing interfaces from contracts.
• gas-calldata-parameters: Encourages optimal memory usage for external functions.
• gas-increment-by-one: Suggests using ++i style for gas-efficient increments.
• gas-indexed-events: Improves event indexing for off-chain systems and reduces gas usage.
• gas-small-strings: Recommends cheaper encoding using bytes32 for short strings.
• gas-strict-inequalities: Helps avoid subtle off-by-one bugs in range conditions.
• gas-struct-packing: Maximizes storage efficiency by suggesting tight struct packing.
• duplicated-imports: Prevents redundant imports that bloat the AST and confuse code structure.
• import-path-check: Ensures all imported files exist and resolve correctly, avoiding runtime errors.
• function-max-lines: Encourages smaller, more readable and maintainable functions.
• constructor-syntax: Enforces modern constructor syntax for consistency and clarity.
• use-natspec: Promotes proper documentation with NatSpec for better audits and readability.

Fixed

• gas-struct-packing false positives - #690
• gas-increment-by-one backward expression - #691
• Typo (thanks to @MarkFizz77)

Added

• use-natspec: Promote the use of natspec and make several checks to enforce it - #689

Commits

• 85d66ef Merge pull request #693 from protofire/600-pre-release
• 03d75d1 pre release 6.0.0
• 48a866d Merge pull request #692 from protofire/fix-rules-revision
• cef4e31 rules revision
• e7c1a17 Merge pull request #691 from protofire/fix-gas-incrementBy1-rule
• bb2913c fix rule to support backward expression
• df1f436 fix rule to support backward expression
• ec78e8b Merge pull request #689 from protofire/feature-use-natspec
• 14e4c88 Merge branch 'develop' into feature-use-natspec
• 24a4235 Merge pull request #690 from protofire/fix-gas-struct-packing
• Additional commits viewable in compare view

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