[BUG][C#][CSharp] Newline character at the example field of the property leads to incorrect CSharp generation

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

If example of the property contains (somehow) sign "\n" at the end

example: |
Succeeded, OrderNo=326123, EndTime={08.08.18 23:59:59}, OrderEndTime=(None)

it leads to rolling to the next line of close tag

    /// <summary>
    /// correct summary
    /// </summary>
    /// <value>correct value </value>
    /// <example>Incorrect example with end tag rolled to the next line

< / example> (I inserted spaces here to show it in the github page)

openapi-generator version

7.4.0

OpenAPI declaration file content or url

please take from https://github.com/OpenAPITools/openapi-generator/issues/18308

Generation Details

Steps to reproduce

call openapi-generator-cli generate -g csharp -i alor_api.yml -o generated --additional-properties=targetFramework=net8.0

Related issues/PRs

please take from https://github.com/OpenAPITools/openapi-generator/issues/18308

Suggest a fix

I've found that it probably should be added replace("\n", " ") in toExampleValue function at least in AbstractCSharpCodegen class

@Override
public String toExampleValue(Schema p) {
return p.getExample() == null
? null
: p.getExample().toString().replace("\n", " ");
}

Start with AbstractCSharpCodegen.toExampleValue and reproduce the issue using the openapi-generator-cli command and the alor_api.yml input referenced from issue 18308. Compare the generated C# XML documentation around the example value; done means the closing tag remains correctly placed when the property example ends with a newline.