Added Fabian as code owners to cosmos SDK (Azure#17369)

Author: kushagraThapar

.github/CODEOWNERS

@@ -35,7 +35,7 @@
 /sdk/core/azure-core-tracing-opentelemetry/         @samvaity @alzimmermsft
 
 # PRLabel: %Cosmos
-/sdk/cosmos/                                        @moderakh @kushagraThapar @David-Noble-at-work @kirankumarkolli @mbhaskar @simplynaveen20 @xinlian12 @milismsft
+/sdk/cosmos/                                        @moderakh @kushagraThapar @FabianMeiswinkel @kirankumarkolli @mbhaskar @simplynaveen20 @xinlian12 @milismsft
 # PRLabel: %azure-spring
 /sdk/cosmos/azure-spring-data-cosmos/               @kushagraThapar @saragluna @yiliuTo @chenrujun @backwind1233 @jialindai @mbhaskar
 # PRLabel: %azure-spring

sdk/cosmos/CODEOWNERS

@@ -7,4 +7,4 @@
 #   https://help.github.com/articles/about-codeowners/  
 
 # Default owner for repo
-*	@moderakh @kushagraThapar @David-Noble-at-work @kirankumarkolli @FabianMeiswinkel
+*	@moderakh @kushagraThapar @kirankumarkolli @FabianMeiswinkel