Upgrade jupyterlab-gallery to version 0.4.0

[krassowski]

Reference Issues or PRs

• v0.4.0 adds branch and depth options
• sibling to Expose jupyterlab-gallery branch and depth options nebari#2556

What does this implement/fix?

Put a x in the boxes that apply

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds a feature)
• Breaking change (fix or feature that would cause existing features not to work as expected)
• Documentation Update
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build related changes
• Other (please describe):

Testing

• Did you test the pull request locally?
• Did you add new tests?

[krassowski]

Tested locally, works well with nebari - undrafting. The CPU docker image build appears stuck so I tested with the GPU version.

[marcelovilla]

Thanks @krassowski ! We tested this for the SciPy deployment and it worked just fine.