Linux CI

Author: mattmassicotte

.github/workflows/ci.yml

@@ -36,3 +36,16 @@ jobs:
           submodules: recursive
       - name: Test platform ${{ matrix.destination }}
         run: set -o pipefail && xcodebuild -scheme SwiftTreeSitter -destination "${{ matrix.destination }}" test | xcbeautify
+
+  linux_test:
+    name: Test Linux
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install swiftly
+        run: curl -L https://swiftlang.github.io/swiftly/swiftly-install.sh | bash -s -- -y
+      - name: Install the latest Swift toolchain
+        run: swiftly install latest
+      - name: Test
+        run: swift test