Docs: update with rfl::Deprecated #571

Job	Run time
windows-msvc-shared (CAPNPROTO)	10m 30s
windows-msvc-shared (TOML)	6m 35s
windows-msvc-shared (PARQUET)	37m 21s
windows-msvc-shared (CBOR)	8m 49s
windows-msvc-shared (XML)	4m 16s
windows-msvc-shared (UBJSON)	9m 24s
windows-msvc-shared (JSON)	12m 28s
windows-msvc-shared (MSGPACK)	3m 42s
windows-msvc-shared (AVRO)	8m 29s
windows-msvc-shared (FLEXBUFFERS)	6m 41s
windows-msvc-shared (YAML)	5m 31s
windows-msvc (FLEXBUFFERS)	5m 47s
windows-msvc (MSGPACK)	4m 9s
windows-msvc (YAML)	4m 13s
windows-msvc (XML)	4m 36s
windows-msvc (PARQUET)	39m 5s
windows-msvc (CAPNPROTO)	8m 47s
windows-msvc (UBJSON)	7m 28s
windows-msvc (AVRO)	12m 53s
windows-msvc (CBOR)	8m 27s
windows-msvc (benchmarks)	46m 46s
windows-msvc (TOML)	4m 3s
windows-msvc (JSON)	11m 30s
	4h 31m 30s

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