nomad, traefik, system-tests: add RabbitMQ OIDC config template, supp… #264

Job	Run time
Check for open PR	3s
Detect Changes	0s
Kotlin Unit Tests (${{ matrix.module }})	-1s
Typecheck Frontend	-1s
Build Verification	-1s
Lint Kotlin (${{ matrix.module }})	-1s
Frontend Unit Tests	-1s
Lint Frontend	-1s
	-3s

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