Bump YamlDotNet from 8.0.0 to 8.1.0

Bumps [YamlDotNet](https://github.com/aaubry/YamlDotNet) from 8.0.0 to 8.1.0.
- [Release notes](https://github.com/aaubry/YamlDotNet/releases)
- [Changelog](https://github.com/aaubry/YamlDotNet/blob/master/RELEASE_NOTES.md)
- [Commits](aaubry/YamlDotNet@v8.0.0...v8.1.0)

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

Author: dependabot-preview[bot]

src/Directory.Build.props

@@ -20,7 +20,7 @@
         <PackageVersion_LibGit2Sharp>0.26.2</PackageVersion_LibGit2Sharp>
         <PackageVersion_LibGit2Sharp_NativeBinaries>2.0.306</PackageVersion_LibGit2Sharp_NativeBinaries>
         <PackageVersion_JetBrainsAnnotations>2019.1.3</PackageVersion_JetBrainsAnnotations>
-        <PackageVersion_YamlDotNet>8.0.0</PackageVersion_YamlDotNet>
+        <PackageVersion_YamlDotNet>8.1.0</PackageVersion_YamlDotNet>
         <PackageVersion_NewtonsoftJson>12.0.3</PackageVersion_NewtonsoftJson>
 
         <PackageVersion_MicrosoftTestSdk>16.4.0</PackageVersion_MicrosoftTestSdk>