fixed the tag issue

Author: Prekshith-Microsoft

infra/main.bicep

@@ -157,13 +157,15 @@ param createdBy string = contains(deployer(), 'userPrincipalName')? split(deploy
 resource resourceGroupTags 'Microsoft.Resources/tags@2021-04-01' = {
   name: 'default'
   properties: {
-    tags: {
-      ...resourceGroup().tags
-      ...allTags
-      TemplateName: 'Code Modernization'
-      Type: enablePrivateNetworking ? 'WAF' : 'Non-WAF'
-      CreatedBy: createdBy
-    }
+    tags: union(
+      resourceGroup().tags ?? {},
+      {
+        TemplateName: 'Code Modernization'
+        Type: enablePrivateNetworking ? 'WAF' : 'Non-WAF'
+        CreatedBy: createdBy
+      },
+      tags
+    )
   }
 }
 

infra/main_custom.bicep

@@ -159,13 +159,15 @@ param createdBy string = contains(deployer(), 'userPrincipalName')? split(deploy
 resource resourceGroupTags 'Microsoft.Resources/tags@2021-04-01' = {
   name: 'default'
   properties: {
-    tags: {
-      ...resourceGroup().tags
-      ...allTags
-      TemplateName: 'Code Modernization'
-      Type: enablePrivateNetworking ? 'WAF' : 'Non-WAF'
-      CreatedBy: createdBy
-    }
+    tags: union(
+      resourceGroup().tags ?? {},
+      {
+        TemplateName: 'Code Modernization'
+        Type: enablePrivateNetworking ? 'WAF' : 'Non-WAF'
+        CreatedBy: createdBy
+      },
+      tags
+    )
   }
 }