shiboken2: update formula to include py module .pth file

[ipatch]

• Have you ensured that your commits follow the commit style guide?

brew style freecad/freecad/[NAME_OF_FORMULA_FILE] 

output from running above command should output something similiar to the below

1 file inspected, no offenses detected

• Have you ensured your commit passed audit checks, ie.

brew audit freecad/freecad/[NAME_OF_FORMULA_FILE] --online --new-formula

---

Not all PRs require passing these checks ie. adding [no ci] in the commit message will prevent the CI from running but PRs that change formula files generally should run through the CI checks that way new bottles are built and uploaded to the repository thus not having to build all formula from source but rather installing from a bottle (significantly faster 🐰 ... 🐢)

For more information about this template file learn more

[ipatch]

build fails on catalina explicitly defining the below cmake variable but did not cause build failures on big sur and newer macos versions 🤨

"-DPYTHON_EXECUTABLE=#{python3}",

got the below output using cmake on macos catalina,

-- Using Qt 5
-- Found PythonInterp: /usr/local/opt/[email protected]/bin/python3
-- Found PythonLibs: /usr/local/opt/[email protected]/Frameworks/Python.framework/Versions/3.11/lib/libpython3.11.dylib (found version "3.11.0")
-- PYTHON_ARCH:
-- CLANG: /usr/local/opt/llvm, /usr/local/opt/llvm/lib/libclang.dylib detected by LLVM_INSTALL_DIR
-- Looking for C++ include clang-c/Index.h
-- Looking for C++ include clang-c/Index.h - found
CMake Error at CMakeLists.txt:51 (message):
  Could not identify shiboken version.  Error:


-- Configuring incomplete, errors occurred!
See also "/tmp/shiboken2A5.15.11-20231207-22175-2hbsic/pyside-setup-opensource-src-5.15.11/build/CMakeFiles/CMakeOutput.log".
-- Cache values
BUILD_TESTS:BOOL=ON
CLANG_LIBRARY:FILEPATH=/usr/local/opt/llvm/lib/libclang.dylib
CMAKE_BUILD_TYPE:STRING=Release
CMAKE_INSTALL_PREFIX:PATH=/usr/local/Cellar/[email protected]/5.15.11_4
CMAKE_OSX_ARCHITECTURES:STRING=
CMAKE_OSX_DEPLOYMENT_TARGET:STRING=
CMAKE_OSX_SYSROOT:PATH=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk
DISABLE_DOCSTRINGS:BOOL=OFF
ENABLE_ICECC:BOOL=OFF
Qt5Core_DIR:PATH=/usr/local/opt/qt@5/lib/cmake/Qt5Core
Qt5_DIR:PATH=/usr/local/opt/qt@5/lib/cmake/Qt5
USE_PYTHON_VERSION:BOOL=OFF