Update gitbucket to 4.46.0 (#82)

Co-authored-by: gitbucket-bot[bot] <256891351+gitbucket-bot[bot]@users.noreply.github.com>

Author: gitbucket-bot[bot]

build.sbt

@@ -2,7 +2,7 @@ name := "gitbucket-helloworld-plugin"
 organization := "io.github.gitbucket"
 version := "1.0.0"
 scalaVersion := "2.13.18"
-gitbucketVersion := "4.45.0"
+gitbucketVersion := "4.46.0"
 scalacOptions ++= Seq(
   "-deprecation",
   "-Xsource:3-cross",