Update CODEOWNERS (Azure#4619)

Add @necusjz for some extensions' owner

.github/CODEOWNERS

@@ -2,7 +2,7 @@
 
 /linter_exclusions.yml @kairu-ms @fengzhou-msft
 
-/src/index.json @fengzhou-msft @qwordy @houk-ms @kairu-ms @jsntcy @Juliehzl @jiasli @zhoxing-ms @evelyn-ys @xfz11 @08nholloway
+/src/index.json @fengzhou-msft @qwordy @houk-ms @kairu-ms @jsntcy @Juliehzl @jiasli @zhoxing-ms @evelyn-ys @xfz11 @08nholloway @necusjz
 
 /src/footprint/ @jonunezd @Diego-Perez-Botero
 
@@ -32,7 +32,7 @@
 
 /src/edgeorder/ @necusjz
 
-/src/express-route-cross-connection/ @kairu-ms @jsntcy
+/src/express-route-cross-connection/ @necusjz @kairu-ms @jsntcy
 
 /src/application-insights/ @alexeldeib
 
@@ -46,11 +46,11 @@
 
 /src/resource-graph/ @demyanenko @amirhbk @chiragg4u
 
-/src/azure-firewall/ @kairu-ms @jsntcy
+/src/azure-firewall/ @necusjz @kairu-ms @jsntcy
 
-/src/virtual-network-tap/ @kairu-ms @jsntcy
+/src/virtual-network-tap/ @necusjz @kairu-ms @jsntcy
 
-/src/virtual-wan/ @kairu-ms @jsntcy
+/src/virtual-wan/ @necusjz @kairu-ms @jsntcy
 
 /src/front-door/ @pichandwork
 
@@ -62,7 +62,7 @@
 
 /src/netappfiles-preview/ @b-lefr
 
-/src/network-manager/ @kairu-ms @jsntcy
+/src/network-manager/ @necusjz @kairu-ms @jsntcy
 
 /src/healthcareapis/ @fengzhou-msft @iviark
 
@@ -78,7 +78,7 @@
 
 /src/connectedmachine/ @farehar
 
-/src/ip-group/ @kairu-ms @jsntcy
+/src/ip-group/ @necusjz @kairu-ms @jsntcy
 
 /src/connectedk8s/ @akashkeshari @alphaWizard