iwyu.yml: fixed jurplel/install-qt-action on Fedora 42 [skip ci]

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/usr/sbin/python3 -m pip install setuptools wheel py7zr==0.20.*
/usr/sbin/python3: No module named pip
Error: Error: The process '/usr/sbin/python3' failed with exit code 1

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      gcc -fno-strict-overflow -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -fexceptions -fcf-protection -fexceptions -fcf-protection -fexceptions -fcf-protection -O3 -fPIC -Isrc/lib/ppmd -Isrc/lib/buffer -I/usr/include/python3.13 -c src/ext/_ppmdmodule.c -o build/temp.linux-x86_64-cpython-313/src/ext/_ppmdmodule.o
      src/ext/_ppmdmodule.c:9:10: fatal error: Python.h: No such file or directory
          9 | #include "Python.h"
            |          ^~~~~~~~~~
      compilation terminated.
      error: command '/usr/sbin/gcc' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for pyppmd
Failed to build inflate64 pyppmd
ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (inflate64, pyppmd)
``

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Successful build with changes applied: https://github.com/danmar/cppcheck/actions/runs/14534560656/job/40780390518.