refactor: pull configs out of `shared` #2901

Job	Run time
build-with-samply / Build (amd64)	2m 4s
build-with-samply / Build (amd64, sockets)	2m 24s
build-with-samply / Security, License Check	34s
build-with-samply / Cargo fmt check	0s
build-with-samply / Test	1m 25s
build-with-samply / Test (sockets)	1m 22s
build-with-samply / Docker (beam-broker) / Tidy GHCR images (samply/beam-broker)	47s
build-with-samply / Docker (beam-broker, sockets) / Tidy GHCR images (samply/beam-broker)	32s
build-with-samply / Docker (beam-broker) / Dockerize (beam-broker)	1m 17s
build-with-samply / Docker (beam-broker, sockets) / Dockerize (beam-broker) (-sockets)	1m 15s
build-with-samply / Docker (beam-proxy, sockets) / Tidy GHCR images (samply/beam-proxy)	34s
build-with-samply / Docker (beam-proxy) / Tidy GHCR images (samply/beam-proxy)	30s
build-with-samply / Docker (beam-proxy) / Dockerize (beam-proxy)	1m 34s
build-with-samply / Docker (beam-proxy, sockets) / Dockerize (beam-proxy) (-sockets)	1m 9s
	15m 27s

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