Bump istio maxReplicas (#1122)

Signed-off-by: Julien Tinguely <julien.tinguely@digitalasset.com>

Author: julientinguely-da

cluster/expected/infra/expected.json

@@ -1218,7 +1218,7 @@
           }
         },
         "autoscaling": {
-          "maxReplicas": 10
+          "maxReplicas": 15
         },
         "podDisruptionBudget": {
           "maxUnavailable": 1
@@ -1303,7 +1303,7 @@
           }
         },
         "autoscaling": {
-          "maxReplicas": 10
+          "maxReplicas": 15
         },
         "podDisruptionBudget": {
           "maxUnavailable": 1

cluster/pulumi/infra/src/istio.ts

@@ -319,7 +319,7 @@ function configureGatewayService(
           },
         },
         autoscaling: {
-          maxReplicas: 10,
+          maxReplicas: 15,
         },
         podDisruptionBudget: {
           maxUnavailable: 1,