Remove a code owner (#107)

* Remove old code owner

* Add new UKMO code owner

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Co-authored-by: DESTOUCHES Mayeul <[email protected]>

Author: MayeulDestouchesMF

CODEOWNERS

@@ -3,7 +3,7 @@
 
 # These owners will be the default owners for everything in the repo.
 
-*       @cacraigucar @climbfuji @dustinswales @gold2718 @grantfirl @mattldawson @mkavulich @mwaxmonsky @nusbaume @peverwhee @svahl991 @MayeulDestouches @ss421
+*       @cacraigucar @climbfuji @dustinswales @gold2718 @grantfirl @mattldawson @mkavulich @mwaxmonsky @nusbaume @peverwhee @MarekWlasak @svahl991 @ss421
 
 # Order is important. The last matching pattern has the most precedence.
 # So if a pull request only touches javascript files, only these owners