Fix issue with formatting from std library updates

exercises/082_anonymous_structs3.zig

@@ -116,7 +116,7 @@ fn printTuple(tuple: anytype) void {
         //         @field(foo, "x"); // returns the value at foo.x
         //
         // The first field should print as: "0"(bool):true
-        print("\"{s}\"({s}):{any} ", .{
+        print("\"{s}\"({any}):{any} ", .{
             field.???,
             field.???,
             ???,