Update dependency jscodeshift to v0.6.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
jscodeshift	devDependencies	patch	0.6.2 -> 0.6.4	source

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Release Notes

facebook/jscodeshift

v0.6.4

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Changed

• Allow writing tests in TypeScript (PR #​308)
• Better handling of .gitingore files: Ignore comments and support \r\n line breaks (PR #​306)

v0.6.3

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Fixed

• Don't throw an error when jscodeshift processes an empty set of files (#​295,
  @​skovhus).
• renameTo should not rename class properties (#​296, @​henryqdineen).
• Custom/unknown CLI parameters are parsed as JSON, just like nomnom used to
  do.

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