Selenoid /download/ endpoint could return file meta-info

[asolntsev]

Selenoid has an endpoint for getting downloaded files
http://localhost:4444/download/8c73726789bccd33d9fec040263030a7/?json

BUT it returns only names of files:

["some-file.txt"]

But when downloading files in tests, it's important to wait until the downloading process is completed.
To achieve it, we need to check the last modification time of the file.

That's why we are asking to return meta-info about files. First of all, its modification time (in milliseconds) and probably size (in bytes):

[
  {
    name: "some-file.txt",
    size: 20100,
    lastModified: 1675024208981
  }
]