build(deps): bump sphinx from 7.2.6 to 8.1.3 #531

Job	Run time
Build docs	1m 43s
Code style	49s
Build and smoke tests (ubuntu-latest, 3.9, false)	49s
Build and smoke tests (ubuntu-latest, 3.10, false)	49s
Build and smoke tests (ubuntu-latest, 3.11, false)	52s
Build and smoke tests (ubuntu-latest, 3.12, false)	1m 4s
Build and smoke tests (windows-latest, 3.9, false)	2m 57s
Build and smoke tests (windows-latest, 3.10, false)	3m 37s
Build and smoke tests (windows-latest, 3.11, false)	2m 44s
Build and smoke tests (windows-latest, 3.12, false)	3m 15s
Testing (ubuntu-latest, 3.9)	38m 48s
Testing (ubuntu-latest, 3.10)	37m 34s
Testing (ubuntu-latest, 3.11)	37m 36s
Testing (ubuntu-latest, 3.12)	37m 47s
Package library	20s
Teams notify on failure	0s
Upload dev documentation	0s
Release project	0s
Upload release documentation	0s
	2h 50m 44s

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