WARNING: MAJOR (BREAKING) CHANGE: Update dependency Sphinx to v8 (7.2.x)

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Sphinx	~=4.0.2 -> >=4.0.2,<8.3

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Could not automerge PR: Changed line is not a simple package update . branch: renovate/7.2.x-sphinx-8.x. line: +Sphinx>=4.0.2,<8.3