Bump ReportGenerator from 4.6.7 to 4.7.1 (#391)

Bumps [ReportGenerator](https://github.com/danielpalme/ReportGenerator) from 4.6.7 to 4.7.1.
- [Release notes](https://github.com/danielpalme/ReportGenerator/releases)
- [Commits](danielpalme/ReportGenerator@v4.6.7...v4.7.1)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Directory.Build.targets

@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Update="GitVersion.Tool" Version="5.3.7" />
     <PackageReference Update="JetBrains.ReSharper.CommandLineTools" Version="2020.2.4" />
-    <PackageReference Update="ReportGenerator" Version="4.6.7" />
+    <PackageReference Update="ReportGenerator" Version="4.7.1" />
     <PackageReference Update="Rocket.Surgery.Nuke" Version="0.14.0-beta.10" />
   </ItemGroup>
   <ItemGroup>