Merge pull request #4351 from hove-io/use_new_mimir_tag #5356

Job	Run time
Init credentials	4s
checks	40s
precommit	2m 43s
build (mutable-debian8_dev, python3.6)	1m 0s
build (mutable-debian11_dev, python3.9)	59m 16s
	1h 3m 43s

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