build(deps): Bump Microsoft.OpenApi.Readers in the all group

Bumps the all group with 1 update: [Microsoft.OpenApi.Readers](https://github.com/Microsoft/OpenAPI.NET).


Updates `Microsoft.OpenApi.Readers` from 1.6.18 to 1.6.19
- [Release notes](https://github.com/Microsoft/OpenAPI.NET/releases)
- [Commits](microsoft/OpenAPI.NET@1.6.18...1.6.19)

---
updated-dependencies:
- dependency-name: Microsoft.OpenApi.Readers
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
...

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

src/helpers/FixOpenApiSpec/FixOpenApiSpec.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.OpenApi.Readers" Version="1.6.18" />
+    <PackageReference Include="Microsoft.OpenApi.Readers" Version="1.6.19" />
   </ItemGroup>
 
 </Project>