build: turn on integration tests in ctest by default #543

Job	Run time
Settings / settings	3s
Lint / Lint	13s
Official Docker image / Build	14m 36s
Build docs / Build docs	41s
Test Linux distros / Matrix configuration	5s
Build and test / Matrix configuration	7s
Test Linux distros / Alpine	14m 39s
Test Linux distros / ArchLinux	11m 28s
Test Linux distros / CentOS	13m 18s
Test Linux distros / Debian	11m 52s
Test Linux distros / Fedora	10m 29s
Test Linux distros / OpenSUSE	11m 26s
Test Linux distros / Ubuntu	11m 57s
Build and test / linux x64 Debug static	10m 15s
Build and test / linux x64 Debug shared	10m 16s
Build and test / linux x64 Release static	13m 44s
Build and test / linux x64 Release shared	10m 35s
Build and test / osx x64 Debug static	28m 5s
Build and test / osx x64 Debug shared	32m 3s
Build and test / osx x64 Release static	18m 43s
Build and test / osx x64 Release shared	10m 58s
Build and test / osx arm64 Debug static	19m 45s
Build and test / osx arm64 Debug shared	19m 10s
Build and test / osx arm64 Release static	7m 18s
Build and test / osx arm64 Release shared	7m 0s
Build and test / win x64 Debug static	15m 17s
Build and test / win x64 Debug shared	15m 44s
Build and test / win x64 Release static	17m 28s
Build and test / win x64 Release shared	17m 35s
Build and test / linux arm64 Debug static	11m 27s
Build and test / linux arm64 Debug shared	34m 18s
Build and test / linux arm64 Release static	15m 43s
Build and test / linux arm64 Release shared	12m 14s
	7h 8m 32s

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