Update dependency ipykernel to v6.29.5

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ipykernel	6.29.4 -> 6.29.5

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Release Notes

ipython/ipykernel (ipykernel)

### [`v6.29.5`](https://togithub.com/ipython/ipykernel/releases/tag/v6.29.5) [Compare Source](https://togithub.com/ipython/ipykernel/compare/v6.29.4...v6.29.5) #### 6.29.5 ([Full Changelog](https://togithub.com/ipython/ipykernel/compare/v6.29.4...1e62d48298e353a9879fae99bc752f9bb48797ef)) ##### Bugs fixed - Fix use of "%matplotlib osx" [#​1237](https://togithub.com/ipython/ipykernel/pull/1237) ([@​ianthomas23](https://togithub.com/ianthomas23)) ##### Maintenance and upkeep improvements - \[6.x] Update Release Scripts [#​1251](https://togithub.com/ipython/ipykernel/pull/1251) ([@​blink1073](https://togithub.com/blink1073)) ##### Contributors to this release ([GitHub contributors page for this release](https://togithub.com/ipython/ipykernel/graphs/contributors?from=2024-03-27\&to=2024-06-29\&type=c)) [@​blink1073](https://togithub.com/search?q=repo%3Aipython%2Fipykernel+involves%3Ablink1073+updated%3A2024-03-27..2024-06-29\&type=Issues) | [@​ianthomas23](https://togithub.com/search?q=repo%3Aipython%2Fipykernel+involves%3Aianthomas23+updated%3A2024-03-27..2024-06-29\&type=Issues)

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