chore: Switch to AvroCoder for Reverse replication template #4695

Job	Run time
Checkstyle	2m 5s
Spotless	1m 59s
Build	1m 12s
Unit Tests	9m 4s
Dataflow Templates Integration Smoke Tests	3m 11s
Dataflow Templates Integration Tests	1h 1m 35s
Dataflow Templates Load Tests	0s
	1h 19m 6s

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