Error when cloning repo without .travis.yml file

[luisg123v]

Since the .travis.yml file is not used anymore when using the --deployv option, it should be allowed for repos not having it.

If I run:

travisfile2dockerfile --deployv git@git.vauxoo.com:vauxoo-dev/budget.git 14.0-rm_travis-luisg

I get the following traceback:

Traceback (most recent call last):
  File "/home/user/.local/bin/travisfile2dockerfile", line 8, in <module>
    sys.exit(main())
  File "/home/user/.local/lib/python3.10/site-packages/travis2docker/cli.py", line 234, in main
    raise InvalidRepoBranchError(msg)
travis2docker.exceptions.InvalidRepoBranchError: The repo or the branch is incorrect value, because It can not got the .travis.yml or variables.sh content from git@git.vauxoo.com:vauxoo-dev/budget.git 14.0-rm_travis-luisg. 
Please, verify access repository,
verify exists url and revision, 
verify exists .travis.yml

In fact, I consider if the .travis file is not found but the variables file is, the `--deployv` option should be enabled, even if not provided. That because new projects will use that option by default.

[luisg123v]

CC @moylop260 @antonag32

[antonag32]

@moylop260 - Can you check the PR I made for this issue please?