chore(deps): update dependency fluentftp to v55

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
FluentFTP	54.2.1 → 55.0.0

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Release Notes

robinrodricks/FluentFTP (FluentFTP)

v55.0.0

• AOT Support
  • New: FluentFTP is now fully AOT ready! This means you can use FluentFTP in projects that use Native Ahead-of-Time (AOT) compilation
  • New: Rewrite core classes for AOT compatibility (Logger, ValuePrinter, FtpAutoDetectConfig, FtpSslStream)
  • New: Add new C# project to test AOT compilation (FluentFTP.AotExamples)
• BouncyCastle SSL Stream
  • New: FluentFTP now supports a new SSL stream backed by BouncyCastle, which allows us to fix some longstanding issues like SSL session reuse/resume which were failing with the default .NET TlsStream
  • New: Integration tests for BouncyCastle stream under FluentFTP.Tests.Integration NS
  • New: Unit tests for BouncyCastle stream under FluentFTP.Tests.Unit.BouncyCastle NS

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