Fixed broken build.zig files. Now works with latest stable compiler (as of commit, latest is 0.10.1) (#3045)

Co-authored-by: Talha Qamar <qamartalha@proton.me>

build.zig

@@ -1,6 +1,6 @@
 const std = @import("std");
 const raylib = @import("src/build.zig");
 
-pub fn build(b: *std.Build) void {
+pub fn build(b: *std.build.Builder) void {
     raylib.build(b);
 }