feat: Add support for multiple sinks #1917

Job	Run time
create-version	3s
test-pyfunc-server (3.8)	2m 23s
test-batch-predictor (3.8)	35s
test-python-sdk (3.8)	47s
test-pyfunc-server (3.9)	2m 31s
test-batch-predictor (3.9)	45s
test-python-sdk (3.9)	42s
test-pyfunc-server (3.10)	2m 22s
test-batch-predictor (3.10)	35s
test-python-sdk (3.10)	32s
lint-api	34s
test-api	3m 38s
build-ui	2m 0s
test-observation-publisher	47s
build-inference-logger	2m 4s
build-transformer	1m 44s
build-batch-predictor-base	3m 19s
build-observation-publisher	2m 54s
build-pyfunc-server-base	1m 57s
build-api	3m 18s
e2e-test	15m 53s
release / publish-inference-logger	13s
release / publish-observation-publisher	2m 28s
release / publish-api	19s
release / publish-batch-predictor	2m 25s
release / publish-pyfunc	1m 5s
release / publish-python-sdk	0s
release / publish-transformer	9s
release / publish-python-sdk-docker	0s
	56m 2s

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