nix

Migrate to Conan 2.x #4430

Job	Run time
dependencies (linux, gcc, Debug)	8m 49s
dependencies (linux, gcc, Release)	8m 23s
dependencies (linux, clang, Debug)	7m 50s
dependencies (linux, clang, Release)	8m 21s
conan	55s
test (linux, gcc, Debug)	6m 6s
coverage (linux, gcc, Debug)	57s
test (linux, gcc, Debug, -Dunity=ON)	6m 4s
test (linux, gcc, Release)	6m 2s
test (linux, gcc, Release, -Dunity=ON)	6m 2s
test (linux, clang, Debug)	6m 6s
test (linux, clang, Debug, -Dunity=ON)	6m 6s
test (linux, clang, Release)	6m 3s
test (linux, clang, Release, -Dunity=ON)	6m 3s
	1h 23m 47s

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