Bump CommandLineParser from 2.2.1 to 2.8.0

Bumps [CommandLineParser](https://github.com/commandlineparser/commandline) from 2.2.1 to 2.8.0.
- [Release notes](https://github.com/commandlineparser/commandline/releases)
- [Changelog](https://github.com/commandlineparser/commandline/blob/master/CHANGELOG.md)
- [Commits](commandlineparser/commandline@v2.2.1...2.8.0)

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

Author: dependabot[bot]

src/Typewriter/Typewriter.csproj

@@ -75,7 +75,7 @@
       <Version>1.0.0-CI-20191014-182007</Version>
     </PackageReference>
     <PackageReference Include="CommandLineParser">
-      <Version>2.2.1</Version>
+      <Version>2.8.0</Version>
     </PackageReference>
     <PackageReference Include="Its.Configuration">
       <Version>1.0.6</Version>