When [PrefixEntityTypeNameBeforeKey](https://github.com/microsoft/OpenAPI.NET.OData/blob/018cfb84fb08103e1144e0f7f3d5c083c624cd58/src/Microsoft.OpenApi.OData.Reader/OpenApiConvertSettings.cs#L58) setting is set to `true`, attempting to generate an OpenAPI from CSDL throws an error. ### Assemblies affected `master` branch ### Steps to reproduce 1. Set this setting `PrefixEntityTypeNameBeforeKey = true` 2. Run the `OasGui` project. 3. Browse for a CSDL file and load it for conversion. ### Expected result The CSDL should successfully be converted to an OpenAPI spec. in the output window. ### Actual result  ### Additional detail The error is thrown due to this [evaluation](https://github.com/microsoft/OpenAPI.NET.OData/blob/f08180c648741330b514149a9a61fba4ab420a24/src/Microsoft.OpenApi.OData.Reader/Generator/OpenApiParameterGenerator.cs#L144).