libsigrok: migrate to [email protected]

[branchvincent]

libsigrok: migrate to [email protected]

[chenrui333]

  /opt/homebrew/lib/python3.13/site-packages/setuptools/dist.py:697: SetuptoolsDeprecationWarning: The namespace_packages parameter is deprecated.
  !!
  
          ********************************************************************************
          Please replace its usage with implicit namespaces (PEP 420).
  
          See https://setuptools.pypa.io/en/latest/references/keywords.html#keyword-namespace-packages for details.
          ********************************************************************************
  
  !!
    ep.load()(self, ep.name, value)
  ../../../bindings/python/sigrok/core/../../../swig/classes.i:51: Warning 330: Template forward class 'enable_shared_from_this< Context >' cannot be used to instantiate a full template class with name 'ContextShared'.
  sigrok/core/classes_wrap.cpp:43679:21: error: use of undeclared identifier 'PyEval_CallObject'
   43679 |       auto result = PyEval_CallObject(swig_obj[1], arglist);
         |                     ^
  sigrok/core/classes_wrap.cpp:47846:21: error: use of undeclared identifier 'PyEval_CallObject'
   47846 |       auto result = PyEval_CallObject(swig_obj[1], arglist);
         |                     ^
  sigrok/core/classes_wrap.cpp:48160:27: error: use of undeclared identifier 'PyEval_CallObject'
   48160 |       const auto result = PyEval_CallObject(swig_obj[1], nullptr);
         |                           ^
  3 errors generated.
  error: command '/opt/homebrew/Library/Homebrew/shims/mac/super/clang++' failed with exit code 1
  make[1]: *** [bindings/python/timestamp] Error 1
  make: *** [all] Error 2