Early support for Python 3.13-rc2

[emcek]

Description

Early support for Python 3.13 (rc2):

• run unit test against 3.13

After official release of 3.13 it will be used as default for Nuitka and PyInstaller

Support for Python 3.13 require PySide6>=6.8 it also drop suport for Python 3.9

PySide6 python support:

[coveralls]

coverage: 93.845% (-0.5%) from 94.334% when pulling e10834fa9d1c91290a41f58993abbfdecdca9eb1 on support_py3_13 into 2f522342bdf4d37be71fff5faa048517a38e6aa9 on master.

[sonarqubecloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[sonarqubecloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud