Multiple code owners cause internal error

[Alexander-Shukaev]

❗ Validator: INTERNAL ERROR Status ERROR

❗ Internal error! Input : Settings : {} Error : This is a mergeable bug, please report it on our issue tracker: https://github.com/mergeability/mergeable/issues/new

SyntaxError: Invalid regular expression: /^*/i: Nothing to repeat
    at new RegExp (<anonymous>)
    at createRegexToMatch (/workspace/lib/validators/options_processor/gitPattern.js:85:10)
    at GitPattern.checkIfPathMatches (/workspace/lib/validators/options_processor/gitPattern.js:41:19)
    at /workspace/lib/validators/options_processor/gitPattern.js:22:63
    at Array.find (<anonymous>)
    at /workspace/lib/validators/options_processor/gitPattern.js:22:45
    at Array.filter (<anonymous>)
    at Object.for (/workspace/lib/validators/options_processor/gitPattern.js:21:16)
    at /workspace/lib/validators/options_processor/owners.js:24:29
    at Array.forEach (<anonymous>)

* @org/team1 @org/team2