try CI

.github/workflows/all.yml

@@ -0,0 +1,24 @@
+on:
+  push:
+    branches:
+      - '*'
+    tags-ignore:
+      - '*'
+  pull_request:
+
+jobs:
+  linux:
+    name: Linux (Ubuntu)
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Build & run built-in tests
+      run: make test
+    - name: Clone test262 repo
+      run: git clone https://github.com/tc39/test262.git test262
+    - name: Patch test262 repo
+      run: patch -d test262 -p1 tests/test262.patch
+    - name: Run test262 suite
+      run: make test2