chore(deps): bump @aws-sdk/rds-signer from 3.473.0 to 3.474.0 #143

Job	Run time
Build deployment artifacts / Build server Docker image	5m 10s
Build deployment artifacts / Build website deployment artifact	2m 33s
Configure AWS Credentials / OIDC Auth	11s
qa / Prepare for QA	4m 12s
qa / Lint terraform	17s
qa / Test end-to-end integration	2m 40s
qa / Test server-side code	2m 23s
qa / Lint JavaScript	1m 43s
qa / Test client-side code	1m 47s
Plan Terraform / Validate and plan terraform	1m 9s
Publish Terraform Plan / Publish Terraform Plan	11s
Publish QA Results / Publish QA Results	9s
	22m 25s

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