Update skuCapacity setting for web server farm to improve scalability during WAF deployment

Author: Pavan-Microsoft

infra/main.bicep

@@ -1127,7 +1127,7 @@ module webServerFarm 'br/public:avm/res/web/serverfarm:0.5.0' = {
     diagnosticSettings: enableMonitoring ? [{ workspaceResourceId: logAnalyticsWorkspaceResourceId }] : null
     // WAF aligned configuration for Scalability
     skuName: enableScalability || enableRedundancy ? 'P1v3' : 'B3'
-    // skuCapacity: enableScalability ? 1 : 1
+    // skuCapacity: enableScalability ? 3 : 1
     skuCapacity: 1 // skuCapacity set to 1 (not 3) due to multiple agents created per type during WAF deployment
     // WAF aligned configuration for Redundancy
     zoneRedundant: enableRedundancy ? true : false