Previously, this block had a generic try-with which is
dangerous since it can cause unwanted behaviours and
cause confusion for future developers.

Previously, TorHandshakes used failwith to raise handshake
failed error. Since we need to catch it, as a result of
replacing generic try-with which lead to a red CI in the
PR, we had to define its special excpetion and catch that:

```
The active test run was aborted. Reason: Test host process crashed : Unhandled exception. System.Exception: Key handshake failed!

   at NOnion.TorHandshakes.NTorHandshake.NOnion-TorHandshakes-IHandshake-GenerateKdfResult(ICreatedCell serverSideData) in /home/runner/work/NOnion/NOnion/NOnion/TorHandshakes/NTorHandshake.fs:line 112
   at <StartupCode$NOnion>.$TorCircuit.handleIncomingCell@348-1.Invoke(Unit unitVar) in /home/runner/work/NOnion/NOnion/NOnion/Network/TorCircuit.fs:line 352
   at Microsoft.FSharp.Control.AsyncPrimitives.CallThenInvoke[T,TResult](AsyncActivation`1 ctxt, TResult result1, FSharpFunc`2 part2) in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:line 398
   at NOnion.Utility.MailboxResultUtil.TryExecuteAsyncAndReplyAsResult@25-3.Invoke(AsyncActivation`1 ctxt) in /home/runner/work/NOnion/NOnion/NOnion/Utility/MailboxUtil.fs:line 25
   at NOnion.Utility.MailboxResultUtil.TryExecuteAsyncAndReplyAsResult@24-6.Invoke(AsyncActivation`1 ctxt) in /home/runner/work/NOnion/NOnion/NOnion/Utility/MailboxUtil.fs:line 24
   at <StartupCode$NOnion>.$TorCircuit.clo@965-15.Invoke(AsyncActivation`1 ctxt) in /home/runner/work/NOnion/NOnion/NOnion/Network/TorCircuit.fs:line 965
   at <StartupCode$NOnion>.$TorCircuit.clo@950-39.Invoke(AsyncActivation`1 ctxt) in /home/runner/work/NOnion/NOnion/NOnion/Network/TorCircuit.fs:line 950

   at <StartupCode$FSharp-Core>.$Mailbox.processFirstArrival@303-8.Invoke(AsyncActivation`1 ctxt) in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\mailbox.fs:line 303

   at Microsoft.FSharp.Control.Trampoline.Execute(FSharpFunc`2 firstAction) in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:line 109

--- End of stack trace from previous location where exception was thrown ---

   at Microsoft.FSharp.Control.AsyncPrimitives.Start@907-1.Invoke(ExceptionDispatchInfo edi) in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:line 907

   at Microsoft.FSharp.Control.Trampoline.Execute(FSharpFunc`2 firstAction) in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:line 109

   at <StartupCode$FSharp-Core>.$Async.-ctor@163-1.Invoke(Object o) in F:\workspace\_work\1\s\src\fsharp\FSharp.Core\async.fs:line 165

   at System.Threading.QueueUserWorkItemCallback.Execute()

   at System.Threading.ThreadPoolWorkQueue.Dispatch()
```