Update dependencies (#787)

Author: Kaliumhexacyanoferrat

Testing/Acceptance/GenHTTP.Testing.Acceptance.csproj

@@ -38,8 +38,8 @@
 
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
 
-        <PackageReference Include="Microsoft.OpenApi" Version="3.0.2" />
-        <PackageReference Include="Microsoft.OpenApi.YamlReader" Version="3.0.2" />
+        <PackageReference Include="Microsoft.OpenApi" Version="3.1.1" />
+        <PackageReference Include="Microsoft.OpenApi.YamlReader" Version="3.1.1" />
 
         <PackageReference Include="MSTest" Version="4.0.2" />