Update CODEOWNERS (Azure#22998)

1. add owners for `/src/azure-cli-core/azure/cli/core/aaz/`
2. add `@necusjz` as owner of `/src/azure-cli/azure/cli/command_modules/monitor`

.github/CODEOWNERS

@@ -17,6 +17,7 @@
 /src/azure-cli-core/azure/cli/core/auth/ @jiasli @evelyn-ys @calvinhzy
 /src/azure-cli-core/azure/cli/core/extension/ @jsntcy @kairu-ms
 /src/azure-cli-core/azure/cli/core/style.py @jiasli @evelyn-ys @zhoxing-ms
+/src/azure-cli-core/azure/cli/core/aaz/ @kairu-ms @necusjz @calvinhzy @jsntcy
 
 /src/azure-cli/azure/cli/command_modules/acr/ @zhoxing-ms @northtyphoon @rosanch @jsntcy
 /src/azure-cli/azure/cli/command_modules/acs/ @zhoxing-ms @zqingqing1 @gtracer @xizhamsft @andyliuliming @fumingzhang @jsntcy
@@ -45,7 +46,7 @@
 /src/azure-cli/azure/cli/command_modules/identity/ @zhoxing-ms @jiasli
 /src/azure-cli/azure/cli/command_modules/iot/ @digimaun @zhoxing-ms
 /src/azure-cli/azure/cli/command_modules/keyvault/ @evelyn-ys @jiasli @calvinhzy
-/src/azure-cli/azure/cli/command_modules/monitor/ @jsntcy @kairu-ms
+/src/azure-cli/azure/cli/command_modules/monitor/ @jsntcy @kairu-ms @necusjz
 /src/azure-cli/azure/cli/command_modules/natgateway/ @khannarheams @jsntcy @kairu-ms @necusjz
 /src/azure-cli/azure/cli/command_modules/network/ @jsntcy @kairu-ms @wangzelin007 @necusjz
 /src/azure-cli/azure/cli/command_modules/policyinsights/ @cheggert