Fix "Rubocop/Metrics/CyclomaticComplexity" issue in lib/jwt.rb #105
Description
Cyclomatic complexity for decode is too high. [35/6]
https://codeclimate.com/github/jwt/ruby-jwt/lib/jwt.rb#issue_56006e721821830001469cf0
{{ message }}
Cyclomatic complexity for decode is too high. [35/6]
https://codeclimate.com/github/jwt/ruby-jwt/lib/jwt.rb#issue_56006e721821830001469cf0