deps: Update dependency csv-diff to v1.2

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
csv-diff	==1.1 -> ==1.2

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Release Notes

simonw/csv-diff (csv-diff)

### [`v1.2`](https://redirect.github.com/simonw/csv-diff/releases/tag/1.2) [Compare Source](https://redirect.github.com/simonw/csv-diff/compare/1.1...1.2) - New feature: `--extra key "python format string"`, for adding additional output keys to the human-readable version of the diff. [#​38](https://redirect.github.com/simonw/csv-diff/issues/38) - Don't crash in JSON format mode if some JSON keys are missing. [#​13](https://redirect.github.com/simonw/csv-diff/issues/13) - Now includes a `Dockerfile` and instructions for building and running it that way. Thanks, [@​gourk](https://redirect.github.com/gourk). [#​11](https://redirect.github.com/simonw/csv-diff/issues/11)

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[dpebot]

/gcbrun

[dpebot]

/gcbrun

[kurtisvg]

/gcbrun

[dpebot]

/gcbrun