chore(deps): update dependency diff to v5

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
diff	^4.0.2 -> ^5.0.0

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Release Notes

kpdecker/jsdiff

v5.0.0

Compare Source

• Breaking: UMD export renamed from JsDiff to Diff.
• Breaking: Newlines separated into separate tokens for word diff.
• Breaking: Unified diffs now match "quirks"

Commits

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[erezrokah]

Doesn't seem our usage should be impacted by the breaking changes:

plugins/functions/npm-diff.js

Line 41 in 86d382a

const diffed = Diff.applyPatch(baseFile, diffText);