docs: use upstream release

[casperdcl]

Bump docs dependencies

Testing you performed

See CI

Related issues/links

• part of #1579
• https://github.com/pydata/pydata-sphinx-theme/pull/1795

Checklist

• [x] I have performed a self-review of my code
• [x] ~I have added docstrings in line with the guidance in the developer guide~
• [x] ~I have updated the relevant documentation~
• [x] ~I have implemented unit tests that cover any new or modified functionality~
• [x] ~CHANGELOG.md has been updated with any functionality change~
• [x] Request review from all relevant developers
• [x] Change pull request label to 'Waiting for review'

Contribution Notes

Please read and adhere to the developer guide and local patterns and conventions.

• [x] The content of this Pull Request (the Contribution) is intentionally submitted for inclusion in CIL (the Work) under the terms and conditions of the Apache-2.0 License
• [x] I confirm that the contribution does not violate any intellectual property rights of third parties

[casperdcl]

currently failing due to:

The following packages are incompatible
├─ pydata-sphinx-theme >=0.15.3  is installable and it requires
│  └─ sphinx >=5.0 , which can be installed;
└─ sphinx-panels is not installable because there are no viable options
   ├─ sphinx-panels [0.5.1|0.5.2] would require
   │  └─ sphinx >=2,<4 , which conflicts with any installable versions previously reported;
   └─ sphinx-panels 0.6.0 would require
      └─ sphinx >=2,<5 , which conflicts with any installable versions previously reported.

[jakobsj]

@casperdcl I recommend requesting reviews from specific individuals rather than a group to progress this.