Update standards version to 4.5.1, 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Fixes: lintian: out-of-date-standards-version
See-also: https://lintian.debian.org/tags/out-of-date-standards-version.html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

@@ -6,7 +6,7 @@ Uploaders: Youhei SASAKI <uwabami@gfd-dennou.org>
 Build-Depends: debhelper-compat (= 13),
                gem2deb,
                ruby-rspec
-Standards-Version: 4.5.0
+Standards-Version: 4.5.1
 Vcs-Git: https://salsa.debian.org/ruby-team/ruby-typed-array.git
 Vcs-Browser: https://salsa.debian.org/ruby-team/ruby-typed-array
 Homepage: https://github.com/yaauie/typed-array