Add Parseable Cloud CTA, adopters section, auto-sync, and frictionless adopter registration #2219

Job	Run time
Build Default x86_64-unknown-linux-gnu	15m 12s
Build Default aarch64-unknown-linux-gnu	16m 18s
Build Default x86_64-pc-windows-msvc	28m 26s
Build Kafka aarch64-apple-darwin	3m 31s
Build Kafka x86_64-unknown-linux-gnu	16m 15s
Build Default aarch64-apple-darwin	15m 20s
	1h 35m 2s

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