v6.2.1

What's Changed

• Update gemspec by @nobu in #743
• Drop 2.3 from CI by @aycabta in #744
• Drop JRuby 9.1.17.0 by @aycabta in #746
• Make (#methodname) a link by @nobu in #747
• Separate off test of RDoc::RubygemsHook by @aycabta in #749
• Fix ghost method line no by @aycabta in #751
• Treat Proc#call syntax sugar for constant correctly by @aycabta in #753
• Support newline in the middle of constant definition by @aycabta in #754

Full Changelog: v6.2.0...v6.2.1