CAMEL-20124: camel-netty - Fix ChannelHandlerFactories' usage of unsharable ByteArrayDecoder

[sekikn]

Description

Currently, using ByteArrayDecoder got through ChannelHandlerFactories.newByteArrayDecoder() twice or more in the same route causes Netty error indicating unsharable decoder reuse. This PR fixes this problem in accordance with the following document: https://camel.apache.org/components/4.0.x/netty-component.html#_using_non_shareable_encoders_or_decoders

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