Update dependency prompt-toolkit to v3.0.50

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
prompt-toolkit	==3.0.48 -> ==3.0.50

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Release Notes

prompt-toolkit/python-prompt-toolkit (prompt-toolkit)

v3.0.50

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Fixes:

• Fixes non user impacting regression on the output rendering. Don't render
  cursor hide/show ANSI escape codes if not needed.

v3.0.49

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New features:

• On Windows, use virtual terminal input when available.
• Support for multiline suggestions.

Fixes:

• Handle InvalidStateError during termination when using
  run_in_terminal/patch_stdout. This can happen in some cases during
  cancellation, probably when using anyio.
• Fix cursor that remains in hidden state when the application exits. This can
  happen when the application doesn't show the cursor and erase_when_done is
  being used.

Breaking changes:

• Drop support for Python 3.7:

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