Bump prompt-toolkit from 3.0.26 to 3.0.27

[dependabot]

Bumps prompt-toolkit from 3.0.26 to 3.0.27.

Changelog

Sourced from prompt-toolkit's changelog.

3.0.27: 2022-02-07

New features:

• Support for cursor shapes. The cursor shape for prompts/applications can now be configured, either as a fixed cursor shape, or in case of Vi input mode, according to the current input mode.
• Handle "cursor forward" command in ANSI formatted text. This makes it possible to render many kinds of generated ANSI art.
• Accept align attribute in Label widget.
• Added PlainTextOutput: an output implementation that doesn't render any ANSI escape sequences. This will be used by default when redirecting stdout to a file.
• Added create_app_session_from_tty: a context manager that enforces input/output to go to the current TTY, even if stdin/stdout are attached to pipes.
• Added to_plain_text utility for converting formatted text into plain text.

Fixes:

• Don't automatically use sys.stderr for output when sys.stdout is not a TTY, but sys.stderr is. The previous behavior was confusing, especially when rendering formatted text to the output, and we expect it to follow redirection.

Commits

• 6ac867a Release 3.0.27
• 96ec6fb Removed unused imports.
• b4d728e Added support for cursor shapes.
• 4a66820 Added to_plain_text utility. A function to turn formatted text into a string.
• 7dd8435 Added create_app_session_from_tty.
• 2c96fe2 Stop preferring a TTY output when creating the default output.
• 402b6a3 Added PlainTextOutput: an output that doesn't write ANSI escape sequences to ...
• 57b42c4 Added ansi-art-and-textarea.py example.
• a71de3c Accept 'align' attribute in Label widget.
• 64d870a Added ptk-logo-ansi-art.py example.
• Additional commits viewable in compare view

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