chore(protobuf): prepare 0.12.0 release (#779)

Author: JohnTitor

Cargo.lock

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 0.12.0
+
 - Updated `prost` dependency to `0.14`.
 - Minimum supported Rust version (MSRV) is now 1.88.
 

actix-protobuf/CHANGES.md

@@ -1,6 +1,6 @@
 [package]
 name = "actix-protobuf"
-version = "0.11.0"
+version = "0.12.0"
 authors = [
     "kingxsp <jin.hb.zh@outlook.com>",
     "Yuki Okushi <huyuumi.dev@gmail.com>",

actix-protobuf/Cargo.toml

@@ -5,9 +5,9 @@
 <!-- prettier-ignore-start -->
 
 [![crates.io](https://img.shields.io/crates/v/actix-protobuf?label=latest)](https://crates.io/crates/actix-protobuf)
-[![Documentation](https://docs.rs/actix-protobuf/badge.svg?version=0.11.0)](https://docs.rs/actix-protobuf/0.11.0)
+[![Documentation](https://docs.rs/actix-protobuf/badge.svg?version=0.12.0)](https://docs.rs/actix-protobuf/0.12.0)
 ![Apache 2.0 or MIT licensed](https://img.shields.io/crates/l/actix-protobuf)
-[![Dependency Status](https://deps.rs/crate/actix-protobuf/0.11.0/status.svg)](https://deps.rs/crate/actix-protobuf/0.11.0)
+[![Dependency Status](https://deps.rs/crate/actix-protobuf/0.12.0/status.svg)](https://deps.rs/crate/actix-protobuf/0.12.0)
 
 <!-- prettier-ignore-end -->