Extended container support #1771

Job	Run time
deploy	42s
test (3.8, lint)	44s
test (3.8, lint_docs)	1m 19s
test (3.8, mypy)	44s
test (3.8, unit-quick)	16m 56s
test (3.8, unit-diagnostic-servebasic-gx-dev)	5m 50s
test (3.8, unit-nonredundant-noclientbuild-noshed-gx-2109)	21m 43s
test (3.8, unit-nonredundant-noclientbuild-noshed-gx-2205)	24m 13s
test (3.8, unit-nonredundant-noclientbuild-noshed-gx-dev)	31m 24s
test (3.8, unit-nonredundant-noclientbuild-noshed-nogx)	51m 46s
test (3.8, unit-diagnostic-serveclientcmd)	14m 30s
test (3.11, lint)	45s
test (3.11, mypy)	50s
test (3.11, unit-quick)	15m 8s
	3h 6m 34s

Provide feedback