Refresh build script

Author: Jericho

build.cake

@@ -1,7 +1,7 @@
 // Install tools.
 #tool dotnet:?package=GitVersion.Tool&version=6.5.0
 #tool nuget:?package=GitReleaseManager&version=0.20.0
-#tool nuget:?package=ReportGenerator&version=5.4.18
+#tool nuget:?package=ReportGenerator&version=5.5.0
 #tool nuget:?package=xunit.runner.console&version=2.9.3
 #tool nuget:?package=CodecovUploader&version=0.8.0