Changes to Update credit spend policy

added the new month enum value to the data/window_unit/allOf[#/components/schemas/CreditSpendWindowUnit] response property for the response status 200

added the new week enum value to the data/window_unit/allOf[#/components/schemas/CreditSpendWindowUnit] response property for the response status 200

added the new month enum value to the request property window_unit/allOf[#/components/schemas/CreditSpendWindowUnit]

added the new week enum value to the request property window_unit/allOf[#/components/schemas/CreditSpendWindowUnit]

added the new optional request property window_amount

added the new optional request property window_unit

added the optional property data/consumed to the response with the 200 status

added the optional property data/headroom to the response with the 200 status

added the optional property data/resets_at to the response with the 200 status

added the optional property data/window_amount to the response with the 200 status

added the optional property data/window_unit to the response with the 200 status

added the required property data/window_count to the response with the 200 status

endpoint added