Bump furo from 2023.5.20 to 2023.7.26 #795

Job	Run time
ensure-catalog-matches-hook-config	25s
Run 'mypy' on python 3.x	26s
Run 'twine-check' on python 3.x	36s
Run 'py-mindeps' on python 3.7	24s
Run tests on ubuntu-latest, py3.7	1m 18s
Run tests on ubuntu-latest, py3.8	1m 8s
Run tests on ubuntu-latest, py3.9	1m 30s
Run tests on ubuntu-latest, py3.10	1m 6s
Run tests on ubuntu-latest, py3.11	1m 13s
Run tests on windows-latest, py3.7	4m 40s
Run tests on windows-latest, py3.8	2m 40s
Run tests on windows-latest, py3.9	2m 30s
Run tests on windows-latest, py3.10	2m 25s
Run tests on windows-latest, py3.11	1m 59s
Run tests on macos-latest, py3.7	1m 19s
Run tests on macos-latest, py3.8	2m 51s
Run tests on macos-latest, py3.9	1m 25s
Run tests on macos-latest, py3.10	1m 32s
Run tests on macos-latest, py3.11	1m 28s
Self-Check	17s
Collate results to check for skipped tests	6s
	31m 18s

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