Downgrade to Zig 0.12.0

Author: jedisct1

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
 
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: 0.13.0
+          version: 0.12.0
 
       - uses: hecrj/setup-rust-action@master
         with: