test

Bump version to v2.2.0 & add release notes #683

Job	Run time
reusable_tests / documentation	12m 24s
reusable_tests / uncrustify	40s
reusable_tests / multiplatform-build (Release, ubuntu-22.04, gcc_64)	11m 20s
reusable_tests / multiplatform-build (Release, ubuntu-24.04, gcc_64)	13m 48s
reusable_tests / multiplatform-build (Release, windows-2019, win64_msvc2019_64)	21m 4s
reusable_tests / multiplatform-build (Release, windows-2022, win64_msvc2019_64)	20m 29s
reusable_tests / multiplatform-build (Debug, ubuntu-22.04, gcc_64)	10m 24s
reusable_tests / multiplatform-build (Debug, ubuntu-24.04, gcc_64)	11m 49s
reusable_tests / multiplatform-build (Debug, windows-2019, win64_msvc2019_64)	17m 1s
reusable_tests / multiplatform-build (Debug, windows-2022, win64_msvc2019_64)	19m 30s
	2h 18m 29s

Provide feedback