feat: Support stream init diagnostics events for FDv2. (#133) #106

Job	Run time
release-please	20s
release-server-sdk-redis-store	-1s
release-test-helpers	-1s
release-server-sdk	-1s
release-sdk-internal	-1s
release-server-sdk-otel	-1s
release-sdk-common	-1s
	14s

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