Bootstrapping #469

Job	Run time
macos-gnupg-binaries	2m 0s
macos-clingo-sources	10m 4s
fedora-clingo-sources	5m 9s
macos-clingo-binaries (macos-11)	8m 1s
macos-gnupg-sources	2m 35s
macos-clingo-binaries (macos-12)	10m 12s
opensuse-clingo-sources	4m 29s
ubuntu-clingo-binaries	4m 30s
ubuntu-clingo-binaries-and-patchelf	1m 34s
ubuntu-clingo-sources	3m 46s
ubuntu-gnupg-binaries	1m 37s
ubuntu-gnupg-sources	1m 42s
	55m 39s

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