chore: ensure code compiles on zig master

src/scheduler.zig

@@ -13,13 +13,13 @@ const PIXELBUF_LEN = disp.PIXELBUF_LEN;
 pub const Scheduler = struct {
     pixels_ptr: *[PIXELBUF_LEN]u8,
     timestamp: u64,
-    queue: PriorityQueue(Event),
+    queue: PriorityQueue(Event, lessThan),
 
     pub fn new(alloc: *Allocator, pixels_ptr: *[PIXELBUF_LEN]u8) Scheduler {
         var queue = Scheduler{
             .timestamp = 0,
             .pixels_ptr = pixels_ptr,
-            .queue = PriorityQueue(Event).init(alloc, less_than),
+            .queue = PriorityQueue(Event, lessThan).init(alloc),
         };
 
         queue.pushEvent(.{
@@ -88,7 +88,7 @@ pub const EventKind = enum {
     DelayTimer,
 };
 
-fn less_than(a: Event, b: Event) Order {
+fn lessThan(a: Event, b: Event) Order {
     return std.math.order(a.timestamp, b.timestamp);
 }