We should add a new shared interface for `Maintenance Configurations` to Resource modules

[jtracey93]

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Description

These are starting to pop up on multiple resources and we should add a consistent way to enable/configure to resource modules:

• https://learn.microsoft.com/en-us/azure/vpn-gateway/customer-controlled-gateway-maintenance
• https://learn.microsoft.com/en-us/azure/virtual-machines/maintenance-configurations
• https://learn.microsoft.com/en-us/azure/azure-sql/managed-instance/maintenance-window-configure?view=azuresql&tabs=azure-portal
• https://learn.microsoft.com/en-us/azure/azure-sql/database/maintenance-window-configure?view=azuresql&tabs=azure-portal
• https://learn.microsoft.com/en-us/azure/azure-sql/maintenance-window-azure-sql?view=azuresql
• https://learn.microsoft.com/en-us/azure/cosmos-db/postgresql/concepts-maintenance
• https://learn.microsoft.com/en-us/azure/aks/planned-maintenance?tabs=azure-cli
• etc...

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