chore: upgrade template to Rspack 2.0 rc.1 (#75)

### Summary
This PR updates `rspack-binding-template` to be compatible with Rspack
2.0 (rc.1), including Rust workspace dependency bumps, regenerated
binding typings, and Node.js engine requirements aligned with Rspack
2.0.

### Key changes
- **Deps/Tooling**
- Rust workspace: edition **2024**, deps bumped to `=0.100.0-rc.1`,
`napi` updated, toolchain refreshed and add `rust-src`.
- JS: upgrade to `@rspack/core@2.0.0-rc.1`; update lockfile accordingly.
- **Runtime compatibility**
- Add `engines.node: ">=20.19.0 <21 || >=22.12.0"` (root + binding
package) and update README note.
- Update index.js to correctly load `@rspack/core` when the callable
export is `default`, while preserving named exports via `Object.assign`.
- **Bindings**
- Regenerate index.d.ts / index.js to match upstream API changes
(notably `JsSource` types, new plugin/tap kinds, `JsCoordinator`, etc.).
- **Rust plugin**
- Use `RawStringSource` for banner injection to match updated
`rspack_sources`.

### Notes
- This is a template upgrade; downstream projects should also move to
Node **20.19+ / 22.12+** when adopting Rspack 2.0.

Author: SyMind

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
 
   build:
     name: Build
-    uses: rstackjs/rspack-toolchain/.github/workflows/build.yml@v1
+    uses: rstackjs/rspack-toolchain/.github/workflows/build.yml@a0ff0d85e7dd792d5ed23c4d55f369e4b87aae87
 
   test:
     name: Test

.github/workflows/release.yml

@@ -89,10 +89,10 @@ jobs:
 
       - name: Get NAPI info
         id: napi-info
-        uses: rstackjs/rspack-toolchain/get-napi-info@v1
+        uses: rstackjs/rspack-toolchain/get-napi-info@a0ff0d85e7dd792d5ed23c4d55f369e4b87aae87
 
       - name: Download rspack binding
-        uses: rstackjs/rspack-toolchain/download-rspack-binding@v1
+        uses: rstackjs/rspack-toolchain/download-rspack-binding@a0ff0d85e7dd792d5ed23c4d55f369e4b87aae87
         with:
           path: ${{ steps.napi-info.outputs.binding-directory }}/artifacts
 

.github/workflows/test.yml

@@ -26,10 +26,10 @@ jobs:
 
       - name: Get NAPI info
         id: napi-info
-        uses: rstackjs/rspack-toolchain/get-napi-info@v1
+        uses: rstackjs/rspack-toolchain/get-napi-info@a0ff0d85e7dd792d5ed23c4d55f369e4b87aae87
 
       - name: Download rspack binding
-        uses: rstackjs/rspack-toolchain/download-rspack-binding@v1
+        uses: rstackjs/rspack-toolchain/download-rspack-binding@a0ff0d85e7dd792d5ed23c4d55f369e4b87aae87
         with:
           target: ${{ matrix.target }}
           path: ${{ steps.napi-info.outputs.binding-directory }}