MAINTAINERS: rpi_pico: Add @ThreeEights as collaborator

Add @ThreeEights as collaborator of RaspberryPi Pico area
and relateds.

Signed-off-by: TOKITA Hiroshi <[email protected]>

Author: soburi

MAINTAINERS.yml

@@ -3560,6 +3560,7 @@ Raspberry Pi Pico Platforms:
     - soburi
   collaborators:
     - yonsch
+    - threeeights
   files:
     - boards/raspberrypi/
     - boards/adafruit/kb2040/
@@ -4959,6 +4960,7 @@ West:
     - soburi
   collaborators:
     - yonsch
+    - threeeights
   files:
     - modules/hal_rpi_pico/
   labels: