Load the whole GAP library before loading packages (#5914) #6167

Job	Run time
Cross compiler for s390x	32m 50s
Test in OpenBSD	8m 42s
testinstall - - ubuntu-latest	5m 43s
teststandard - - ubuntu-latest	20m 12s
testmanuals - - ubuntu-latest	5m 58s
testexpect testmockpkg testspecial test-compile testlibgap testkernel testworkspace - - ubuntu-latest	7m 30s
testpackages testinstall-loadall - - ubuntu-latest	26m 48s
makemanuals testmakeinstall - CONFIGFLAGS="--prefix=/tmp/gapprefix" NO_COVERAGE=1 - ubuntu-latest	6m 20s
teststandard - ABI=32 CONFIGFLAGS="" - ubuntu-20.04	18m 54s
testinstall - HPCGAP=yes ABI=64 - ubuntu-latest	8m 10s
testmockpkg testinstall testworkspace - BOOTSTRAP_MINIMAL=yes - macos-latest	7m 45s
testbugfix - CONFIGFLAGS="--enable-memory-checking" - ubuntu-latest	29m 18s
testbuildsys testmockpkg testinstall - NO_COVERAGE=1 ABI=64 BUILDDIR=out-of-tree CONFIGFLAGS="--enable-valgrind" - ubuntu-latest	4m 48s
testbuildsys testmockpkg testinstall - NO_COVERAGE=1 ABI=32 BUILDDIR=out-of-tree CONFIGFLAGS="" - ubuntu-20.04	4m 42s
testinstall - JULIA=yes CONFIGFLAGS="--enable-debug" - ubuntu-20.04	5m 17s
testmockpkg testinstall - - windows-2019	18m 5s
Send Slack notification on status change	2s
	3h 31m 4s

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