adjust min replica count for cerpus_prod (#2755) #750

Job	Run time
get_variables	1s
release_api_auth / test_and_release	3m 57s
release_api_common / test	34s
release_api_resources / test	1m 12s
release_api_lti / test	1m 11s
release_proxy_admin / lint_and_create_release	3m 27s
release_proxy_auth / test	1m 39s
release_proxy_resource / test_and_release	2m 34s
release_proxy_lti / test	1m 16s
release_www / lint_and_create_release	2m 51s
release_api_contentauthor / composer-validate	6s
release_api_contentauthor / php-cs-fixer	0s
release_api_contentauthor / phpstan	1m 43s
release_api_contentauthor / test_and_release	7m 9s
release_api_common / create_release	2m 24s
release_api_lti / create_release	1m 44s
release_api_resources / create_release	1m 34s
release_proxy_lti / create_release	1m 40s
release_proxy_auth / create_release	1m 44s
building_done	1s
Create Release	0s
auto_deploy (cerpus_test)	6m 18s
	43m 5s

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