Components: Handle extended set of git path prefixes

[robsyme]

As per the document linked in the function description, valid git URLs may begin with ssh:// (and ftp://). This PR extends the nf-core tool to clone module repositories that are of these forms.

Before this fix, running a command like

nf-core modules list remote \
  --git-remote ssh://git-codecommit.us-east-2.amazonaws.com/v1/repos/modules.git

would pass the string ssh://git-codecommit.us-east-2.amazonaws.com/v1/repos/modules.git to the repo_full_name_from_remote function which would return the repo full name /v1/repos/modules, which would be passed to the git clone subshell to invoke the command trying to git clone into the root of the filesystem, which is going to fail for almost all users:

git clone -v --progress -- \
  ssh://git-codecommit.us-east-2.amazonaws.com/v1/repos/modules.git \
  /v1/repos/modules

This amended function now returns the string v1/repos/modules instead, which should allow the repo to be cloned correctly because it is no longer an absolute path.

git clone -v --progress -- \
  ssh://git-codecommit.us-east-2.amazonaws.com/v1/repos/modules.git \
  v1/repos/modules

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 75.14%. Comparing base (1bde816) to head (32fda2c).
Report is 3 commits behind head on dev.

Files	Patch %	Lines
nf_core/modules/modules_utils.py	50.00%	3 Missing ⚠️

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[mirpedrol]

@nf-core-bot changelog

[mirpedrol]

LGTM, thanks for the fix!