chore: allow running Redis standalone #5464

Job	Run time
file_changes	4s
Build Docker image	7m 16s
Build application and assets	6m 23s
Linting / JavaScript	22s
Linting / Elixir	3m 36s
Linting / TypeScript	36s
Unit tests / JavaScript / Mocha	35s
Linting / CSS	22s
Formatting / JavaScript & TypeScript	27s
Formatting / Elixir	3m 25s
Unit tests / JavaScript & TypeScript / Jest	2m 5s
Type checks / Elixir	3m 45s
Type checks / TypeScript	32s
Unit tests / Elixir / mix coveralls.html	58s
	30m 26s

Provide feedback