byovpc: Set redpanda version to use to 25.2 (#411)

Author: 0xdiba

modules/get-started/pages/cluster-types/byoc/aws/vpc-byo-aws.adoc

@@ -231,7 +231,7 @@ To create the Redpanda cluster:
 ```bash
 export AWS_ZONES='["use2-az1", "use2-az2", "use2-az3"]'
 export REDPANDA_CLUSTER_NAME=sample-redpanda-cluster
-export REDPANDA_VERSION=25.1
+export REDPANDA_VERSION=25.2
 export REDPANDA_THROUGHPUT_TIER=tier-1-aws-v3-arm
 export AGENT_INSTANCE_PROFILE_ARN="$(terraform output -raw agent_instance_profile_arn)"
 export CONNECTORS_NODE_GROUP_INSTANCE_PROFILE="$(terraform output -raw connectors_node_group_instance_profile_arn)"

modules/get-started/pages/cluster-types/byoc/azure/vnet-azure.adoc

@@ -74,7 +74,7 @@ export AZURE_RESOURCE_PREFIX=sample-
 export REDPANDA_CLUSTER_NAME=<Redpanda Cluster Name>
 export REDPANDA_RG_ID=<Redpanda Cloud Resource Group Id>
 export REDPANDA_THROUGHPUT_TIER=tier-1-azure-v3-x86
-export REDPANDA_VERSION=25.1
+export REDPANDA_VERSION=25.2
 export REDPANDA_MANAGEMENT_STORAGE_ACCOUNT_NAME=rpmgmtsa
 export REDPANDA_MANAGEMENT_STORAGE_CONTAINER_NAME=rpmgmtsc
 export REDPANDA_0_PODS_SUBNET_NAME=snet-rp-0-pods