Test

feat: update templating to allow passing additional postgresql parameters via values overrides #337

Job	Run time
check-flavor	4s
validate (install, registry1) / run	8m 57s
validate (install, upstream) / run	7m 38s
validate (install, unicorn) / run	7m 47s
validate (upgrade, registry1) / run	8m 7s
validate (upgrade, unicorn) / run	7m 58s
validate (upgrade, upstream) / run	8m 41s
	49m 12s

Provide feedback