VideoStreamRequest->createVideo fails to create new video

[hcaz]

When calling the createVideo endpoint as part of the VideoStreamRequest it throws an error due to the wrong content-type header being set. According to the docs the header should be 'Content-Type' => 'application/*+json'. This is available within the Header enum and just needs changing in the VideoEndpoint.php set of constants.

  "content" => array:4 [▼
    "type" => "https://tools.ietf.org/html/rfc7231#section-6.5.13"
    "title" => "Unsupported Media Type"
    "status" => 415
    "traceId" => "00-e85c6c5a7f5df7187fa7438f6282af68-8fdf8a6359a16646-00"
  ]

[ToshY]

Hey @hcaz 👋

Good catch, seems that I missed that one. I'll take a look at the PR.

[ToshY]

Merged #29