fix: upgrades sharp yaml to avodi signing issues on netfx

Author: baywet

src/Microsoft.OpenApi.YamlReader/Microsoft.OpenApi.YamlReader.csproj

@@ -33,7 +33,7 @@
           <PrivateAssets>all</PrivateAssets>
         </PackageReference>
 
-        <PackageReference Include="SharpYaml" Version="2.1.2" />
+        <PackageReference Include="SharpYaml" Version="2.1.3" />
         <PackageReference Include="System.Text.Json" Version="[8.0.5,)" />
         <NuGetAuditSuppress Include="https://github.com/advisories/GHSA-hh2w-p6rv-4g7w" />
         <NuGetAuditSuppress Include="https://github.com/advisories/GHSA-8g4q-xg66-9fp4" />

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

@@ -19,7 +19,6 @@
         <PackageReference Include="coverlet.msbuild" Version="6.0.4" PrivateAssets="all" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
         <PackageReference Include="FluentAssertions" Version="7.2.0" />
-        <PackageReference Include="SharpYaml" Version="2.1.2" />
         <PackageReference Include="xunit" Version="2.9.3" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.1" PrivateAssets="all" />
     </ItemGroup>

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

@@ -13,7 +13,6 @@
     <PackageReference Include="FluentAssertions" Version="7.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="SharpYaml" Version="2.1.2" />
     <PackageReference Include="System.Text.Json" Version="9.0.6" />
     <PackageReference Include="Verify.Xunit" Version="30.3.1" />
     <PackageReference Include="xunit" Version="2.9.3" />