Update standards version to 4.6.1

debian/control

@@ -9,7 +9,7 @@ Build-Depends: debhelper-compat (= 13),
                ruby-ffi-compiler (<< 2.0),
                ruby-ffi-compiler (>= 1.0.1-4~),
                ruby-rspec
-Standards-Version: 4.5.1
+Standards-Version: 4.6.1
 Vcs-Git: https://salsa.debian.org/ruby-team/ruby-http-parser.git
 Vcs-Browser: https://salsa.debian.org/ruby-team/ruby-http-parser
 Homepage: https://github.com/cotag/http-parser