Tests

Support transient /etc #1828

Job	Run time
Build - FCOS minimal	1m 59s
Build (Fedora)	1m 39s
Build (C9S)	2m 28s
Debian Stable with sign-ed25519 and FUSE 2	4m 51s
Debian Stable with curl, sign-ed25519, no gpgme, FUSE 3	5m 32s
Debian Stable 32 bit	4m 50s
Debian Stable without libsystemd	4m 12s
Debian Testing	5m 45s
Debian Testing with libsoup3	5m 25s
Debian stable + static-prepareroot	4m 22s
Ubuntu Latest Release	4m 39s
build-integration	8m 41s
Code style	54s
Privileged testing	50s
	56m 7s

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