v0.12.0 (2024-07-08)

This breaking release updates tonic to the hyper 1.0 ecosystem and also updates
to prost v0.13.0.

build: Custom codecs for generated code (#1599) (18a2b30)
channel: Make channel feature additive (#1574) (b947e1a)
codec: Make error when not utf8 value in compression encoding (#1768) (f8e1f87)
Implement http_body::Body::size_hint for custom body (#1713) (9728c01)
Make boxed function public (#1754) (2cc868f)
Relax GrpcMethod lifetime (#1598) (68bf17d)
tls: Add ability to add multiple ca certificates (#1724) (3457f92)
tls: Use rustls_pki_types::CertificateDer to describe DER encoded certificate (#1707) (96a8cbc)
tls: Remove tls roots implicit configuration (#1731) (de73617)
transport: Make service router independent from transport (#1572) (da48235)
transport: Make transport server and channel independent (#1630) (654289f)
transport: Rename reexported axum body (#1752) (5d7bfc2)
Use http::Extensions directly (#1710) (ed95d27)

tonic: flush accumulated ready messages when status received (#1756) (d312dcc), closes #1423

tonic and crates updated to hyper 1.0 (#1670)
tonic and crates updated to prost 0.13 (#1779)
tonic_reflection::server is updated to use the generated
tonic_reflection::pb::v1 code.
Make compression encoding configuration more malleable (#1757)

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