chore(deps): bump GitVersion.MsBuild from 6.0.2 to 6.0.3 (#219)

Author: dependabot[bot]

Directory.Packages.props

@@ -5,7 +5,7 @@
   </PropertyGroup>
   <ItemGroup>
     <GlobalPackageReference Include="CSharpier.MSBuild" Version="0.29.2" />
-    <GlobalPackageReference Include="GitVersion.MsBuild" Version="6.0.2" />
+    <GlobalPackageReference Include="GitVersion.MsBuild" Version="6.0.3" />
     <GlobalPackageReference Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="3.3.4" />
     <GlobalPackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="8.0.0" />
     <GlobalPackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />