enhancement(socket sink): Integrate `encoding::Encoder` with `socket` sink (#10684)

* Remove `deny_unknown_fields` that create conflicting requirements with `flatten`

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Integrate `encoding::Encoder` with `socket` sink

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Propagate `Encoder` down to socket implementations to avoid cloning/borrowing

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Make encoder in socket sinks generic such that other sinks can build on top of it

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Fix component features

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Add criterion bench to compare `vector::sinks::util::encode_log` with `vector::codecs::Encoder::encode`

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Default to `BytesEncoder` for message-based socket sinks

Signed-off-by: Pablo Sichert <mail@pablosichert.com>

* Fix component features

Signed-off-by: Pablo Sichert <mail@pablosichert.com>