Upgrade to Qt6.2

[raimund-schluessler]

This PR upgrades PyQt5 to PyQt6 in order to support Macs with M1 Arm processor, which are supported natively from Qt6.2 on.

[codecov-commenter]

Codecov Report

Merging #23 (90164c8) into main (fe839e6) will increase coverage by 0.01%.
The diff coverage is 76.47%.

@@            Coverage Diff             @@
##             main      #23      +/-   ##
==========================================
+ Coverage   77.63%   77.64%   +0.01%     
==========================================
  Files          35       35              
  Lines        2423     2425       +2     
==========================================
+ Hits         1881     1883       +2     
  Misses        542      542              

Impacted Files	Coverage Δ
impose/__main__.py	0.00% <0.00%> (ø)
impose/gui/dlg_edit_shape.py	23.68% <50.00%> (ø)
impose/gui/main.py	65.97% <50.00%> (ø)
impose/gui/colocalize_pgrois.py	56.90% <75.00%> (ø)
impose/__init__.py	100.00% <100.00%> (ø)
impose/gui/collect.py	83.78% <100.00%> (ø)
impose/gui/collect_pgrois.py	82.81% <100.00%> (ø)
impose/gui/collect_shape_controls.py	62.37% <100.00%> (ø)
impose/gui/colocalize.py	56.66% <100.00%> (ø)
impose/gui/visualize.py	93.52% <100.00%> (ø)
... and 3 more

📣 Codecov can now indicate which changes are the most critical in Pull Requests. Learn more

[paulmueller]

Could be related to pyqtgraph?

[raimund-schluessler]

Could be related to pyqtgraph?

Yes, indeed. It turns out that pyqtgraph failed to determine that it should use PyQt6 and was silently still using PyQt5 in the background. Forcing PyQt6 in 90164c8 solved this problem.

[raimund-schluessler]

This should be good to be reviewed now. As far as I can tell, everything still works as it should.

[paulmueller]

This is only important if PyQt5 is installed, correct?

[raimund-schluessler]

I tend to say yes. But pyqtgraph was very thorough in finding pyqt5 and found it even though it was not installed in the ENV running Impose, but in the global python environment. And since in the env only pyqt6 was available running Impose failed then.
I would like to leave this in, just to be sure pyqtraph uses pyqt6, because otherwise it will fail completely.

[paulmueller]

Thanks for the effort. Could you please update the changelog here as well (bump xyz from a to b)?

[raimund-schluessler]

Thanks for the effort. Could you please update the changelog here as well (bump xyz from a to b)?

Done.