chore: add params to make crunchy optional, and document the steps needed. #4569

Job	Run time
Builds (backend)	11s
Builds (backend)	11s
Builds (frontend)	13s
Builds (frontend)	13s
Builds (migrations)	10s
Builds (migrations)	10s
Deploys Database / Deploy Or Upgrade Crunchy DB	0s
Deploys Database / Deploy Or Upgrade Crunchy DB	0s
Deploys / Helm	10m 31s
Deploys / Helm	2m 2s
Tests	0s
PR Results	1s
PR Results	1s
Tests / E2E (chromium)	59s
Tests / E2E (Google Chrome)	1m 0s
Tests / E2E (firefox)	1m 2s
Tests / Integration	7s
Tests / E2E (safari)	1m 28s
Tests / Load (backend)	2m 2s
Tests / E2E (Microsoft Edge)	1m 34s
Tests / Load (frontend)	2m 2s
	23m 57s

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