Generally Available: High-scale mesh in Azure Virtual Network Manager

High-scale mesh using [connected group](https://learn.microsoft.com/en-us/azure/virtual-network-manager/concept-connectivity-configuration#enable-high-scale-private-endpoints-in-azure-virtual-network-manager-connected-groups) in Azure Virtual Network Manager is now in general availability. In available regions, customers may connect up to 3,000 virtual networks in a single mesh connectivity configuration by default and higher scale IP connectivity within those virtual networks available by request. Manage connectivity across large virtual network environments without creating and maintaining individual peerings. High-scale mesh uses the familiar network group and connectivity configuration model, helping you keep applications and business units in separate virtual networks while simplifying direct network-to-network connectivity. [Learn more](https://learn.microsoft.com/en-us/azure/virtual-network-manager/concept-connectivity-configuration#enable-high-scale-connectivity-in-azure-virtual-network-manager-connected-groups).