Optimize CI workflows #1188

Job	Run time
Generate job matrix	3s
Cache test dataset / Cache test datasets	4s
Build Conan deps / Build dependencies with Conan (${{ inputs.os }})	0s
Build Conan deps / Build dependencies with Conan (ubuntu-20.04)	19m 50s
Build Conan deps / Build dependencies with Conan (${{ inputs.os }})	0s
Build Conan deps / Collect output	1s
Build project (gcc-8, ubuntu-20.04, Ninja, 3.29.*, Debug, OFF)	19m 35s
Build project (gcc-14, ubuntu-24.04, Ninja, 3.29.*, Debug, ON)	40m 28s
Build project (clang-8, ubuntu-20.04, Ninja, 3.29.*, Debug, OFF)	13m 44s
Build project (clang-18, ubuntu-24.04, Ninja, 3.29.*, Debug, ON)	22m 35s
Build project (gcc-14, ubuntu-24.04, Ninja, 3.29.*, Release, ON)	40m 27s
Build project (clang-18, ubuntu-24.04, Ninja, 3.29.*, Release, ON)	37m 55s
Clean stale Ccache cache	1s
Run integration tests	1s
Run unit tests	1s
Status Check (Ubuntu CI)	1s
	3h 14m 46s

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