MAINTAINERS: remove juimonen

juimonen hasn't reviewed any PRs or engaged in any Zephyr
activity since July 2023.

Recent activities:
  - review: Review on 'drivers: dai: doc: Cleanup Doxygen documentation'
    zephyrproject-rtos#60514
    (2023-07-18T11:01:00Z)
  - review: Review on 'intel_adsp: dmic: Refactoring of blob parsing
    function'
    zephyrproject-rtos#60172
    (2023-07-18T10:35:52Z)
  - review: Review on 'drivers: intel: ssp: delay initialization after
    dma'
    zephyrproject-rtos#60304
    (2023-07-18T10:01:58Z)

Signed-off-by: Benjamin Cabé <[email protected]>

Author: kartben

MAINTAINERS.yml

@@ -1428,7 +1428,6 @@ Documentation Infrastructure:
     - LaurentiuM1234
   collaborators:
     - lgirdwood
-    - juimonen
     - iuliana-prodan
     - dbaluta
   files: