Update github-api to 1.324 (apache#588)

Co-authored-by: scala-steward-asf[bot] <147768647+scala-steward-asf[bot]@users.noreply.github.com>

Author: scala-steward-asf[bot]

project/plugins.sbt

@@ -34,7 +34,7 @@ addSbtPlugin("net.virtual-void" % "sbt-hackers-digest" % "0.1.2")
 addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.7.0")
 
 // used in ValidatePullRequest to check github PR comments whether to build all subprojects
-libraryDependencies += "org.kohsuke" % "github-api" % "1.323"
+libraryDependencies += "org.kohsuke" % "github-api" % "1.324"
 
 // used for @unidoc directive
 libraryDependencies += "io.github.lukehutch" % "fast-classpath-scanner" % "3.1.15"