List activity reports

curl --request GET \
  --url https://api.folkyn.com/api/v1/activity-reports \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "items": [
      {
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "mission": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "name": "<string>",
          "purchase_order": "<string>",
          "project_code": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "name": "<string>",
            "external_id": "<string>"
          }
        },
        "external_referent": {
          "email": "<string>",
          "company": "<string>"
        },
        "report_month": "<string>",
        "submission_date": "2023-11-07T05:31:56Z",
        "status": "draft",
        "reviewed_at": "2023-11-07T05:31:56Z",
        "approved_at": "2023-11-07T05:31:56Z",
        "rejection_reason": "<string>",
        "freelancer": {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "first_name": "<string>",
          "last_name": "<string>",
          "email": "<string>",
          "referent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "referent": {
            "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "first_name": "<string>",
            "last_name": "<string>"
          }
        },
        "invoicing_is_paid": true,
        "expenses_is_paid": true,
        "invoice_amount_excl_vat": 123,
        "expense_amount_excl_vat": 123,
        "created_at": "2023-11-07T05:31:56Z"
      }
    ],
    "total": 123,
    "current_page": 123,
    "per_page": 123,
    "accounting_tool_email": "<string>"
  }
}