Update build.zig.zon

Author: hazeycode

build.zig.zon

@@ -15,8 +15,8 @@
             .hash = "1220e600a92d73dc8c3b5303351dcc67352114c975e59ae55de11b637ec173e75455",
         },
         .system_sdk = .{
-            .url = "https://github.com/zig-gamedev/system-sdk/archive/refs/heads/main.tar.gz",
-            .hash = "1220f94cae247d9249ded5372571d54f2d6dd303ab116ef02b748725c917a04351a6",
+            .url = "https://github.com/zig-gamedev/system-sdk/archive/refs/tags/v0.2.0.tar.gz",
+            .hash = "122035336d7535f655fe0ece31cea0fbf8ad2f1e42f64b073995050a425ca8f8fbdc",
         },
         .dawn_x86_64_windows_gnu = .{
             .url = "https://github.com/michal-z/webgpu_dawn-x86_64-windows-gnu/archive/d3a68014e6b6b53fd330a0ccba99e4dcfffddae5.tar.gz",