Split bindgen CI into a separate job

This allows the usage of a different Rust toolchain when testing the
integration of clang-sys and bindgen (which is useful because the MSRV
of this crate and bindgen might diverge)

.github/workflows/ci.yml

@@ -9,8 +9,8 @@ on:
       - master
 
 jobs:
-  ci:
-    name: CI
+  test:
+    name: Test
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -36,5 +36,21 @@ jobs:
         run: cargo test --verbose --features ${{ matrix.clang[1] }} -- --nocapture
       - name: Cargo Test (Runtime)
         run: cargo test --verbose --features "${{ matrix.clang[1] }} runtime" -- --nocapture
+  test-bindgen:
+    name: Test (bindgen)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      # LLVM and Clang
+      - name: Install LLVM and Clang
+        uses: KyleMayes/install-llvm-action@v1
+        with:
+          version: 14
+          directory: ${{ runner.temp }}/llvm
+      # Rust
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+      # Test
       - name: Cargo Run (bindgen-test)
         run: cargo run --manifest-path bindgen-test/Cargo.toml