Bump jupyter-sphinx from 0.4.0 to 0.5.3 in /requirements

[dependabot[bot]]

Bumps jupyter-sphinx from 0.4.0 to 0.5.3.

Release notes

Sourced from jupyter-sphinx's releases.

v0.5.3

What's Changed

• build: use the build lib to create the wheel by @​12rambau in jupyter/jupyter-sphinx#256
• RLS: 0.5.3 by @​12rambau in jupyter/jupyter-sphinx#257

Full Changelog: https://github.com/jupyter/jupyter-sphinx/compare/v0.5.2...v0.5.3

v0.5.2

What's Changed

• build: use double quote in yaml by @​12rambau in jupyter/jupyter-sphinx#251

Full Changelog: https://github.com/jupyter/jupyter-sphinx/compare/v0.5.1...v0.5.2

v0.5.1

What's Changed

• test: create a prerelease job by @​12rambau in jupyter/jupyter-sphinx#247
• build: use a dedicated publish workflow by @​12rambau in jupyter/jupyter-sphinx#248

Full Changelog: https://github.com/jupyter/jupyter-sphinx/compare/v0.5.0...v0.5.1

v0.5.0

What's Changed

• drop support for Python 3.6 by @​12rambau in jupyter/jupyter-sphinx#229
• Add direct dependency on ipykernel by @​garrison in jupyter/jupyter-sphinx#226
• Clean up CI and drop py3.7 by @​blink1073 in jupyter/jupyter-sphinx#236
• Adapt to level config to match other Jupyter repos by @​blink1073 in jupyter/jupyter-sphinx#237
• Bump actions/setup-python from 1 to 5 by @​dependabot in jupyter/jupyter-sphinx#240
• Bump actions/checkout from 2 to 4 by @​dependabot in jupyter/jupyter-sphinx#241
• Bump pre-commit/action from 2.0.0 to 3.0.0 by @​dependabot in jupyter/jupyter-sphinx#242
• Bump pypa/gh-action-pypi-publish from 1.1.0 to 1.8.11 by @​dependabot in jupyter/jupyter-sphinx#239
• docs: change default branch name to main by @​12rambau in jupyter/jupyter-sphinx#243
• RLS: 0.5.0 by @​12rambau in jupyter/jupyter-sphinx#245

New Contributors

• @​garrison made their first contribution in jupyter/jupyter-sphinx#226
• @​blink1073 made their first contribution in jupyter/jupyter-sphinx#236
• @​dependabot made their first contribution in jupyter/jupyter-sphinx#240

Full Changelog: https://github.com/jupyter/jupyter-sphinx/compare/v0.4.0...v0.5.0

Commits

• 0d6b26c RLS: 0.5.3 (#257)
• 0735d45 build: use the build lib to create the wheel (#256)
• 8da3d1c RLS: 0.5.2 (#252)
• 63036cc build: use double quote in yaml (#251)
• f05aa3a RLS: 0.5.1 (#250)
• 2cd0f59 build: use a dedicated publish workflow (#248)
• a2885e0 test: create a prerelease job (#247)
• 57292b8 RLS: 0.5.0 (#245)
• b1c61b2 docs: change default branch name to main (#243)
• ff53d13 Bump pypa/gh-action-pypi-publish from 1.1.0 to 1.8.11 (#239)
• Additional commits viewable in compare view

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[dependabot[bot]]

Looks like jupyter-sphinx is up-to-date now, so this is no longer needed.