Drop Python 3.9 support, add 3.14 #372

Job	Run time
Pre-commit checks / Pre-commit Checks	32s
Unit tests (macOS-Xcode, 3.13)	2m 57s
Unit tests (macOS-Xcode, 3.11)	3m 23s
Unit tests (macOS-Xcode, 3.12)	2m 35s
Unit tests (macOS-Xcode, 3.14)	1m 43s
Unit tests (macOS-app, 3.10)	2m 1s
Unit tests (macOS-Xcode, 3.10)	2m 42s
Unit tests (macOS-app, 3.12)	1m 57s
Unit tests (macOS-app, 3.13)	1m 55s
Unit tests (linux-flatpak, 3.10)	5m 43s
Unit tests (macOS-app, 3.11)	1m 47s
Unit tests (macOS-app, 3.14)	1m 15s
Unit tests (linux-flatpak, 3.11)	5m 54s
Unit tests (windows-VisualStudio, 3.11)	3m 42s
Unit tests (windows-VisualStudio, 3.10)	3m 1s
Unit tests (linux-flatpak, 3.12)	6m 33s
Unit tests (windows-app, 3.10)	2m 52s
Unit tests (linux-flatpak, 3.14)	2m 7s
Unit tests (windows-VisualStudio, 3.12)	3m 5s
Unit tests (windows-VisualStudio, 3.13)	3m 16s
Unit tests (linux-flatpak, 3.13)	6m 24s
Unit tests (windows-VisualStudio, 3.14)	2m 45s
Unit tests (windows-app, 3.11)	2m 31s
Unit tests (iOS, 3.14)	4m 4s
Unit tests (android, 3.13)	5m 31s
Unit tests (iOS, 3.13)	4m 4s
Unit tests (android, 3.11)	6m 13s
Unit tests (android, 3.12)	5m 37s
Unit tests (windows-app, 3.12)	3m 2s
Unit tests (android, 3.10)	6m 15s
Unit tests (windows-app, 3.13)	4m 11s
Unit tests (iOS, 3.11)	5m 16s
Unit tests (windows-app, 3.14)	2m 50s
Unit tests (android, 3.14)	1m 30s
Unit tests (iOS, 3.10)	4m 48s
Unit tests (linux-system, system, ubuntu-latest, sudo apt update -y && sudo apt install -y --no-i...	2m 28s
Unit tests (iOS, 3.12)	6m 42s
	2h 13m 11s

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