Force braces around multi-line statements (#3094)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/tm1637/tm1637.cpp

@@ -202,10 +202,11 @@ bool TM1637Display::send_byte_(uint8_t b) {
     this->bit_delay_();
 
     // Set data bit
-    if (data & 0x01)
+    if (data & 0x01) {
       this->dio_pin_->pin_mode(gpio::FLAG_INPUT);
-    else
+    } else {
       this->dio_pin_->pin_mode(gpio::FLAG_OUTPUT);
+    }
 
     this->bit_delay_();