Update dependency junegunn/fzf to v0.57.0

[renovate]

This PR contains the following updates:

Package	Update	Change
junegunn/fzf	minor	v0.56.3 -> v0.57.0

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Release Notes

junegunn/fzf (junegunn/fzf)

v0.57.0: 0.57.0

Compare Source

• You can now resize the preview window by dragging the border
• Built-in walker improvements
  • --walker-root can take multiple directory arguments. e.g. --walker-root include src lib
  • --walker-skip can handle multi-component patterns. e.g. --walker-skip target/build
• Removed long processing delay when displaying images in the preview window
• FZF_PREVIEW_* environment variables are exported to all child processes (#​4098)
• Bug fixes in fish scripts

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