Bump SharpYaml from 1.6.6 to 1.8.0

Bumps [SharpYaml](https://github.com/xoofx/SharpYaml) from 1.6.6 to 1.8.0.
- [Release notes](https://github.com/xoofx/SharpYaml/releases)
- [Changelog](https://github.com/xoofx/SharpYaml/blob/master/changelog.md)
- [Commits](xoofx/SharpYaml@v1.6.6...1.8.0)

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

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

Author: dependabot[bot]

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

@@ -40,7 +40,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="SharpYaml" Version="1.6.6" />
+        <PackageReference Include="SharpYaml" Version="1.8.0" />
     </ItemGroup>
 
     <ItemGroup>

test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj

@@ -247,7 +247,7 @@
         </PackageReference>
         <PackageReference Include="Newtonsoft.Json" Version="13.0.1">
         </PackageReference>
-        <PackageReference Include="SharpYaml" Version="1.6.6">
+        <PackageReference Include="SharpYaml" Version="1.8.0">
         </PackageReference>
         <PackageReference Include="xunit" Version="2.4.1">
         </PackageReference>

test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj

@@ -18,7 +18,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
     <PackageReference Include="FluentAssertions" Version="5.10.3" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="SharpYaml" Version="1.6.6" />
+    <PackageReference Include="SharpYaml" Version="1.8.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <PrivateAssets>all</PrivateAssets>