Upsert/Patch client events.

curl --request POST \
  --url https://api.gcore.com/storage/notifications/v1/events \
  --header 'APIKey: <api-key>'

{
  "reaching_files_quantity": [
    {
      "bucket_name": "<string>",
      "count": 123,
      "storage_name": "<string>",
      "uuid": "<string>"
    }
  ],
  "reaching_used_requests": [
    {
      "bucket_name": "<string>",
      "count": 123,
      "storage_name": "<string>",
      "uuid": "<string>"
    }
  ],
  "reaching_used_space": [
    {
      "bucket_name": "<string>",
      "bytes": 123,
      "storage_name": "<string>",
      "uuid": "<string>"
    }
  ],
  "reaching_used_traffic": [
    {
      "bucket_name": "<string>",
      "bytes": 123,
      "storage_name": "<string>",
      "uuid": "<string>"
    }
  ]
}