Update standards version to 4.6.1, no changes needed.

Changes-By: lintian-brush
Fixes: lintian: out-of-date-standards-version
See-also: https://lintian.debian.org/tags/out-of-date-standards-version.html

debian/control

@@ -11,7 +11,7 @@ Build-Depends-Indep: libhtml-parser-perl,
                      libwww-perl,
                      netbase,
                      perl
-Standards-Version: 4.3.0
+Standards-Version: 4.6.1
 Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libhttp-proxy-perl
 Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libhttp-proxy-perl.git
 Homepage: https://metacpan.org/release/HTTP-Proxy