[CI] Format code according to conventions (#12277)

Co-authored-by: QMK Bot <hello@qmk.fm>

tmk_core/protocol/xt.h

@@ -68,6 +68,6 @@ POSSIBILITY OF SUCH DAMAGE.
         setPinOutput(XT_CLOCK_PIN); \
     } while (0)
 
-void    xt_host_init(void);
+void xt_host_init(void);
 
 uint8_t xt_host_recv(void);

tmk_core/protocol/xt_interrupt.c

@@ -119,9 +119,9 @@ ISR(XT_INT_VECT) {
  * Ring buffer to store scan codes from keyboard
  *------------------------------------------------------------------*/
 #define PBUF_SIZE 32
-static uint8_t     pbuf[PBUF_SIZE];
-static uint8_t     pbuf_head = 0;
-static uint8_t     pbuf_tail = 0;
+static uint8_t pbuf[PBUF_SIZE];
+static uint8_t pbuf_head = 0;
+static uint8_t pbuf_tail = 0;
 
 static inline void pbuf_enqueue(uint8_t data) {
     uint8_t sreg = SREG;