Bump pybind11 from 3.0.1 to 3.0.3

[dependabot]

Bumps pybind11 from 3.0.1 to 3.0.3.

Release notes

Sourced from pybind11's releases.

Version 3.0.3

Bug fixes:

• Fixed TSS key exhaustion in implicitly_convertible() when many implicit conversions are registered across large module sets. #6020

• Fixed heap-buffer-overflow in pythonbuf with undersized buffers by enforcing a minimum buffer size. #6019

• Fixed virtual-inheritance pointer offset crashes when dispatching inherited methods through virtual bases. #6017

• Fixed free(): invalid pointer crashes during interpreter shutdown with py::enum_<> by duplicating late-added def_property_static argument strings. #6015

• Fixed function_record heap-type deallocation to call PyObject_Free() and decref the type. #6010

• Hardened PYBIND11_MODULE_PYINIT and get_internals() against module-initialization crashes. #6018

• Fixed static_pointer_cast build failure with virtual inheritance in holder_caster_foreign_helpers.h. #6014

• Fixed ambiguous factory template specialization that caused compilation failures with nvcc + GCC 14. #6011

• Fixed crash in def_readwrite for non-smart-holder properties of smart-holder classes. #6008

• Fixed memory leak for py::dynamic_attr() objects on Python 3.13+ by clearing managed __dict__ contents during deallocation. #5999

• Fixed binding of noexcept and ref-qualified (&, &&) methods inherited from unregistered base classes. #5992

Internal:

• Moved tomlkit dependency to the dev dependency group. #5990

• Switched to newer public CPython APIs (PyType_GetFlags and public vectorcall APIs where available). #6005

Tests:

• Made an async callback test deterministic by replacing fixed sleep with bounded waiting. #5986

CI:

... (truncated)

Changelog

Sourced from pybind11's changelog.

Version 3.0.3 (March 31, 2026)

Bug fixes:

• Fixed TSS key exhaustion in implicitly_convertible() when many implicit conversions are registered across large module sets. #6020

• Fixed heap-buffer-overflow in pythonbuf with undersized buffers by enforcing a minimum buffer size. #6019

• Fixed virtual-inheritance pointer offset crashes when dispatching inherited methods through virtual bases. #6017

• Fixed free(): invalid pointer crashes during interpreter shutdown with py::enum_<> by duplicating late-added def_property_static argument strings. #6015

• Fixed function_record heap-type deallocation to call PyObject_Free() and decref the type. #6010

• Hardened PYBIND11_MODULE_PYINIT and get_internals() against module-initialization crashes. #6018

• Fixed static_pointer_cast build failure with virtual inheritance in holder_caster_foreign_helpers.h. #6014

• Fixed ambiguous factory template specialization that caused compilation failures with nvcc + GCC 14. #6011

• Fixed crash in def_readwrite for non-smart-holder properties of smart-holder classes. #6008

• Fixed memory leak for py::dynamic_attr() objects on Python 3.13+ by clearing managed __dict__ contents during deallocation. #5999

• Fixed binding of noexcept and ref-qualified (&, &&) methods inherited from unregistered base classes. #5992

Internal:

• Moved tomlkit dependency to the dev dependency group. #5990

• Switched to newer public CPython APIs (PyType_GetFlags and public vectorcall APIs where available). #6005

Tests:

• Made an async callback test deterministic by replacing fixed sleep with bounded waiting. #5986

... (truncated)

Commits

• 1b49908 docs: add v3.0.3 and v3.1.0 changelog updates. (#6023)
• c066c76 fix: add missing PYBIND11_ALWAYS_INLINE macro for v3.0.3 backports
• 76efcb3 Bump version from v3.0.2 → v3.0.3
• 0f41635 chore(deps): bump pygments from 2.17.2 to 2.20.0 in /docs (#6024)
• 54a4615 chore(deps): bump requests from 2.32.4 to 2.33.0 in /docs (#6013)
• d12037c chore(deps): update pre-commit hooks (#6002)
• 64eecc4 chore(deps): bump the actions group with 3 updates (#6000)
• c0ea8fc Fix heap-buffer-overflow in pythonbuf with undersized buffers (#6019)
• 8d621d6 fix: detect virtual inheritance in add_base to prevent pointer offset crash (...
• b6a616e fix: strdup "self" arg in def_property_static, partially revert #6010 (gh...
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