Update the mlugg/setup-zig GitHub action

Author: jedisct1

.github/workflows/zig.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Install Zig
-        uses: mlugg/setup-zig@v1
+        uses: mlugg/setup-zig@v2
         with:
           version: 0.14.0
       - uses: actions/checkout@v4