Update dependency ty to v0.0.26

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ty (changelog)	==0.0.25 → ==0.0.26

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Release Notes

astral-sh/ty (ty)

v0.0.26

Compare Source

Released on 2026-03-26.

Bug fixes

• Prevent "too many cycle iteration" panics in more situations (#​24061)
• Fix false positives and false negatives when unpacking a union of tuples into a function call (#​23298)

Core type checking

• Add support for typing.Concatenate (#​23689)
• Validate the return type of generator functions (#​24026)
• Support dataclass field converters (#​23088)
• Disallow Self in metaclass and static methods (#​23231)
• Improve call inference for keyword-only dict() (#​24103)
• Respect non-explicitly defined dataclass_transform params (#​24170)
• Unconditionally silence diagnostics in unreachable code (#​24179)
• Respect terminal-function-call narrowing in global scope (#​23245)

Performance

• Fix performance regression for narrowing on a larger Literal type(#​24185)

Contributors

• @​sharkdp
• @​Glyphack
• @​charliermarsh
• @​mtshiba
• @​dhruvmanila
• @​carljm
• @​choucavalier

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