Bump SharpYaml from 2.1.0 to 2.1.1

Bumps [SharpYaml](https://github.com/xoofx/SharpYaml) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/xoofx/SharpYaml/releases)
- [Changelog](https://github.com/xoofx/SharpYaml/blob/master/changelog.md)
- [Commits](xoofx/SharpYaml@2.1.0...2.1.1)

---
updated-dependencies:
- dependency-name: SharpYaml
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Microsoft.OpenApi.Readers/Microsoft.OpenApi.Readers.csproj

@@ -18,7 +18,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="SharpYaml" Version="2.1.0" />
+        <PackageReference Include="SharpYaml" Version="2.1.1" />
     </ItemGroup>
 
     <ItemGroup>