Require authentication for trigger_ssa endpoint

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Require authentication for trigger_ssa endpoint

Description:
The verifier/application/trigger_ssa received the query params (VerifierActionsQueryParams) to check if the caller is an allocator. The body (TriggerSSAInfo) has changed because part of the needed data is in the query params.

Usage Conditions:
To execute this endpoint, the following conditions must be met:

1. The caller must be an Allocator.

Deployment Considerations:
No special actions are required.

Example TriggerSSAInfo:

{
  "amount": "1",
  "amount_type": "PiB"
}