Crontab install doesn't honor tracked repo metadata excludes

[sp3nx0r]

detect-secrets-server/detect_secrets_server/actions/install.py

Lines 31 to 42 in e9f60d6

	for repo, is_local in list_tracked_repositories(args):
	command = '{} detect-secrets-server scan {}'.format(
	repo['crontab'],
	repo['repo']
	)
	if is_local:
	command += ' --local'
	if args.root_dir:
	command += ' --root-dir {}'.format(args.root_dir)
	if args.output_hook_command:
	command += ' {}'.format(args.output_hook_command)
	jobs.append(command.strip())

Code currently doesn't honor tracked repo metadata, which makes installing a cronjob with that data manual. Adding placeholder to come back and fix this

[sp3nx0r]

This is only an issue if the fix for Issue #17 isn't in play. Remaining args will be picked up from metadata.