curl --request DELETE \
  --url https://us.infisical.com/api/v1/app-connections/teamcity/{connectionId}

{
  "appConnection": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name": "<string>",
    "orgId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "createdAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z",
    "credentials": {
      "instanceUrl": "<string>"
    },
    "description": "<string>",
    "version": 1,
    "isPlatformManagedCredentials": false,
    "gatewayId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "projectId": "<string>",
    "isAutoRotationEnabled": false,
    "gatewayPoolId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "rotation": {
      "rotationInterval": 123,
      "rotateAtUtc": {
        "hours": 123,
        "minutes": 123
      },
      "lastRotationMessage": "<string>",
      "nextRotationAt": "2023-11-07T05:31:56Z"
    },
    "credentialsHash": "<string>",
    "project": {
      "name": "<string>",
      "id": "<string>",
      "type": "<string>",
      "slug": "<string>"
    }
  }
}