chore(ci): Integrate changeset (#9284)

**Description:**

@swc-bot works, but as it works by creating a commit after merging each PR, it makes reading commit log harder and it causes problems with caching in CI.

Changeset itself does not support managing Rust crates, but there's a crate for this purpose.

.cargo/config.toml

@@ -1,6 +1,11 @@
+[env]
+CARGO_WORKSPACE_DIR = { value = "", relative = true }
+
 [alias]
-codegen = "run --package generate-code --"
-xtask   = "run --package xtask --"
+bump     = "run --package swc-releaser -- bump"
+codegen  = "run --package generate-code --"
+releaser = "run --package swc-releaser --"
+xtask    = "run --package xtask --"
 
 [build]
 

.changeset/calm-snakes-enjoy.md

@@ -0,0 +1,5 @@
+---
+dbg-swc: patch
+---
+
+chore(ci): Integrate `knope` and changeset

Cargo.toml

@@ -27,6 +27,7 @@ members = [
   "crates/swc_typescript",
   "crates/swc_fast_ts_strip",
   "tools/generate-code",
+  "tools/swc-releaser",
 ]
 resolver = "2"
 
@@ -59,6 +60,7 @@ resolver = "2"
   bumpalo                   = "3.16.0"
   cargo_metadata            = "0.18.1"
   cfg-if                    = "1.0.0"
+  changesets                = "0.2.2"
   chrono                    = "0.4.38"
   codspeed-criterion-compat = "2.6.0"
   console_error_panic_hook  = "0.1.7"

knope.toml

@@ -0,0 +1,2 @@
+[package]
+changelog = "CHANGELOG.md"

tools/swc-releaser/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+edition           = "2021"
+license.workspace = true
+name              = "swc-releaser"
+publish           = false
+repository        = { workspace = true }
+version           = "0.1.0"
+
+[dependencies]
+anyhow     = { workspace = true }
+changesets = { workspace = true }
+clap       = { version = "4.5.9", features = ["derive"] }

tools/swc-releaser/src/main.rs

@@ -0,0 +1,101 @@
+use std::{
+    env,
+    path::{Path, PathBuf},
+    process::Command,
+};
+
+use anyhow::{Context, Result};
+use changesets::ChangeType;
+use clap::{Parser, Subcommand};
+
+#[derive(Debug, Parser)]
+struct CliArs {
+    #[clap(long)]
+    pub dry_run: bool,
+
+    #[clap(subcommand)]
+    pub cmd: Cmd,
+}
+
+#[derive(Debug, Subcommand)]
+enum Cmd {
+    Bump,
+}
+
+fn main() -> Result<()> {
+    let CliArs { dry_run, cmd } = CliArs::parse();
+
+    let workspace_dir = env::var("CARGO_WORKSPACE_DIR")
+        .map(PathBuf::from)