Ignore errors for EV_DELETE in EventListener

[corteggo]

During tests execution, we've experienced the following error multiple times:

Peasy/EventListener.swift:51: Fatal error: No such file or directory

Environment:

• Xcode 14.2
• macOS Monterrey 12.6 / macOS Ventura 13.2

After debugging, we noticed this is eventually received upon server.stop() invocation. The server was being started without any specific port, so Peasy looked for an available one. The fatalError invocation causes the test execution to fail even when tests pass.

In my opinion, this can be ignored for EV_DELETE. server.stop() is usually invoked within tearDown() so whatever happens to server while stopping is irrelevant for test execution results.