Fix memory leak in Bun.spawn (#20095)

Co-authored-by: Dylan Conway <dylan.conway567@gmail.com>

src/cli/pack_command.zig

@@ -2411,7 +2411,7 @@ pub const PackCommand = struct {
         }
 
         pub fn deinit(this: *const IgnorePatterns, allocator: std.mem.Allocator) void {
-            for (this.list) |pattern_info| {
+            for (this.list) |*pattern_info| {
                 pattern_info.glob.deinit(allocator);
             }
             allocator.free(this.list);