chore(deps): update dependency ty to v0.0.66

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ty (changelog)	==0.0.65 → ==0.0.66

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Release Notes

astral-sh/ty (ty)

v0.0.66

Compare Source

Released on 2026-08-03.

LSP server

• Index with-statement targets as symbols (#​27256)
• Trigger signature help after completing callable with parentheses (#​27084)

Library support

• Pydantic: Recognize models installed on extra search paths (#​27429)

Diagnostics

• Detect __aenter__ and __aexit__ that do not return awaitables (#​27414)
• Diagnose dataclass fields after inherited defaults (#​27327)
• Emit diagnostic when specializing a non-generic class (#​26883)
• Improve error context for incompatible callable signatures (#​27422)
• Preserve forwarded expanded-variadic diagnostic sources (#​27266)

Core type checking

• Avoid over-materializing user-defined TypeIs return types (#​26864)
• Fix enum class container assignability (#​27318)
• Hide stub-only helpers from implicit builtin lookup (#​27423)
• Move Unknown out of the experimental ty_extensions API (#​27430)
• Preserve TypeVarTuple context during Generic recovery (#​27381)
• Preserve exact numeric types in covariant collections (#​27311)
• Reject ClassVar and Final qualifiers in NamedTuple fields (#​27380)
• Reject out-of-scope ParamSpec components (#​27378)
• Reject specializing non-generic subclasses (#​27377)
• Respect bounds and constraints in generic materializations (#​27228)
• Sync vendored typeshed stubs (#​27401). Typeshed diff

Contributors

• @​dhruvmanila
• @​carljm
• @​Punisheroot
• @​AlexWaygood
• @​cheparity
• @​BitWeaverDev
• @​charliermarsh
• @​ribru17
• @​sharkdp

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