jupyterlab, nbdime: migrate to [email protected]

[Moisan]

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[branchvincent]

Since these have to be migrated together, we need revision bumps (could also consider removing nbdime's dep on jupyterlab since it doesn't actually depend on it)

[chenrui333]

Since these have to be migrated together, we need revision bumps (could also consider removing nbdime's dep on jupyterlab since it doesn't actually depend on it)

good call 👍 almost forgot.

[github-actions]

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