[Code owners] Update ContentManagement with talzich (demisto#39284)

Author: mmhw

.github/CODEOWNERS

@@ -41,7 +41,7 @@
 /Packs/CommonTypes/ @altmannyarden @idovandijk
 /Packs/CommonPlaybooks/ @altmannyarden @idovandijk
 /Packs/CommonDashboards/ @altmannyarden @idovandijk
-/Packs/ContentManagement/ @mmhw
+/Packs/ContentManagement/ @talzich
 /Packs/CommonTypes/IndicatorTypes/* @Ni-Knight
 /Packs/CommonTypes/Layouts/* @Ni-Knight