Gemfile: Update RuboCop to 0.34.0
Gemfile: Update RuboCop to 0.34.0

onddo/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,karlsvec/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,karlsvec/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,karlsvec/ssl_certificate-cookbook