fix: kernel concurrency, interrupt context, and user VA safety

kernel/src/Drivers/PS2/Keyboard.cpp

@@ -150,7 +150,7 @@ namespace Drivers::PS2::Keyboard {
         Kt::KernelLogStream(Kt::OK, "PS2/KB") << "Keyboard driver initialized";
     }
 
-    void HandleIRQ(uint8_t irq) {
+    void HandleIRQ(uint8_t irq, bool) {
         (void)irq;
         uint8_t scancode = Io::In8(DataPort);