Update Standards-Version to 4.6.1

debian/control

@@ -7,7 +7,7 @@ Build-Depends: debhelper-compat (= 13),
                dh-sequence-phpcomposer,
                php-psr-http-message,
                phpab
-Standards-Version: 4.4.0
+Standards-Version: 4.6.1
 Homepage: http://php-http.readthedocs.org/en/latest/message-factory/
 Vcs-Git: https://salsa.debian.org/php-team/pear/php-http-message-factory.git
 Vcs-Browser: https://salsa.debian.org/php-team/pear/php-http-message-factory