[RISC-V] System.Console CancelKeyPressTests.ExitDetectionNotBlockedByHandler increase timeout

[tomeksowi]

Increase timeout on CancelKeyPressTests.ExitDetectionNotBlockedByHandler on Debug RISC-V, similar to #96187 or #96186.

Part of #84834, cc @dotnet/samsung

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[jkotas]

The change does not work as expected:

    CancelKeyPressTests.HandlerInvokedForSigInt(redirectStandardInput: False) [FAIL]
      System.ArgumentException : Field marshaling is not supported by Invoke: WaitFailTestTimeoutSeconds
      Stack Trace:
        /_/src/Microsoft.DotNet.RemoteExecutor/src/RemoteExecutor.cs(602,0): at Microsoft.DotNet.RemoteExecutor.RemoteExecutor.GetMethodInfo(Delegate d)
        /_/src/Microsoft.DotNet.RemoteExecutor/src/RemoteExecutor.cs(128,0): at Microsoft.DotNet.RemoteExecutor.RemoteExecutor.Invoke(Action`1 method, String arg, RemoteInvokeOptions options)
        /_/src/libraries/System.Console/tests/CancelKeyPress.Unix.cs(100,0): at CancelKeyPressTests.HandlerInvokedForSignal(Int32 signalOuter, Boolean redirectStandardInput)
        /_/src/libraries/System.Console/tests/CancelKeyPress.Unix.cs(26,0): at CancelKeyPressTests.HandlerInvokedForSigInt(Boolean redirectStandardInput)

[jkotas]

/ba-g dead lettered Helix queue