modify logic in QScintilla easyblock to find the PyQt5 sipdir in more places

[mboisson]

When installing PyQt5 5.15.5 as an extension of Qt5 5.15.8, two things happen

1. The current qscintilla.py at line https://github.com/easybuilders/easybuild-easyblocks/blob/develop/easybuild/easyblocks/q/qscintilla.py#L127 tests get_software_version('PyQt5'), which returns None, since PyQt5 is it is part of Qt5, not PyQt5 module (see support for this at https://github.com/easybuilders/easybuild-easyblocks/blob/develop/easybuild/easyblocks/q/qscintilla.py#L60)

2. Our SIP files are not in the locations that are tested, i.e. previously, we had:

$ find /cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.12.8/ -name 'qgraphicssceneevent.sip'
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.12.8/share/python3.6/site-packages/sip/PyQt5/QtWidgets/qgraphicssceneevent.sip
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.12.8/share/python3.7/site-packages/sip/PyQt5/QtWidgets/qgraphicssceneevent.sip
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.12.8/share/python3.8/site-packages/sip/PyQt5/QtWidgets/qgraphicssceneevent.sip
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.12.8/share/python3.9/site-packages/sip/PyQt5/QtWidgets/qgraphicssceneevent.sip
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.12.8/share/python2.7/site-packages/sip/PyQt5/QtWidgets/qgraphicssceneevent.sip

now we have:

$ find /cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.15.8/ -name 'qgraphicssceneevent.sip'
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.15.8/lib/python3.8/site-packages/PyQt5/bindings/QtWidgets/qgraphicssceneevent.sip
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.15.8/lib/python3.9/site-packages/PyQt5/bindings/QtWidgets/qgraphicssceneevent.sip
/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/Core/qt/5.15.8/lib/python3.10/site-packages/PyQt5/bindings/QtWidgets/qgraphicssceneevent.sip

This PR avoids using get_software_version('PyQt5') altogether, and instead tests various possible location of PyQt5 sip dir, and picks the first one that matches.

[Micket]

Apart from the typo, looks good i think. But you won't have pyqt_root as well right? Since you don't have PyQt5 as an extension.

[mboisson]

Apart from the typo, looks good i think. But you won't have pyqt_root as well right? Since you don't have PyQt5 as an extension.

yes, that's done here
https://github.com/easybuilders/easybuild-easyblocks/blob/develop/easybuild/easyblocks/q/qscintilla.py#L60

[Micket]

lgtm (i need to find time to make a test build)

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS QScintilla-2.11.6-GCCcore-11.2.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3104.skitty.os - Linux RHEL 8.6, x86_64, Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz (skylake_avx512), Python 3.6.8
See https://gist.github.com/606cc6b852159f0d9f567b980b5fd0a0 for a full test report.