[PyQt] ANN: SIP v5.1.0 Released

[Phil Thompson]

SIP v5.1.0 has been released with the following new features...

- Added the 'minimum-glibc-version' project option to specify the 
minimum
   GLIBC version required by the project.  This is used to determine the
   correct platform tag to use for Linux wheels.

- Added the 'build-tag' project option to specify the build tag to be 
used in
   the name of a wheel.  sip-wheel has a corresponding '--build-tag' 
command
   line option.

- The values of list options in pyproject.toml files can now contain
   environment markers as defined in PEP 508.

- Added Project.project_path() to the API.

Phil