CODEOWNERS: Add ownership for ESP32 PWM drivers

Add myself as codeowner for the ESP32 LEDC and MCPWM drivers.

Signed-off-by: Lucas Tamborrino <lucas.tamborrino@espressif.com>

CODEOWNERS

@@ -355,6 +355,7 @@
 /drivers/pwm/pwm_shell.c                  @henrikbrixandersen
 /drivers/pwm/*gecko*                      @sun681
 /drivers/pwm/*it8xxx2*                    @RuibinChang
+/drivers/pwm/*esp32*                      @LucasTambor
 /drivers/regulator/*pmic*                 @danieldegrasse
 /drivers/reset/                           @andrei-edward-popa
 /drivers/sensor/                          @MaureenHelm