• Modifiy data model in common-utils/notification
• Modify SPI to support it from functionality prespective

Is your feature request related to a problem? Please describe.
N/A

Describe the solution you'd like
Allow a parameter for methodType in the Webhook model definition. This methodType can be constricted to POST, PUT, and PATCH.

Describe alternatives you've considered
N/A

Additional context
The Alerting plugin's custom webhook already supports POST, PUT, and PATCH