CI: Try 3

.github/workflows/build.yml

@@ -10,15 +10,21 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
 
-      - name: Setup Zig
-        uses: goto-bus-stop/setup-zig@v1.2.4
-        with:
-          version: master
+    - name: Setup Zig
+      uses: goto-bus-stop/setup-zig@v1.2.4
+      with:
+        version: master
 
-      - name: Test
-        run: echo test
+    - name: Test
+      run: |
+        zig build test
+
+    - name: Build with latest zig & vk.xml
+      run: |
+        wget https://raw.githubusercontent.com/KhronosGroup/Vulkan-Docs/main/xml/vk.xml
+        zig build -Dvulkan-registry=./vk.xml