Bump astral-sh/setup-uv from 4 to 5 #1071

Job	Run time
lint	1m 41s
Rustfmt	12s
docs	1m 43s
Rust unit tests (ubuntu-latest)	2m 23s
Rust unit tests (macos-latest)	1m 53s
test (macos-latest, 3.9)	4m 35s
typecheck	1m 9s
Rust unit tests (windows-latest)	3m 48s
test (macos-latest, 3.10)	3m 49s
test (macos-latest, 3.11)	4m 0s
test (macos-latest, 3.12)	4m 23s
test (macos-latest, 3.13)	4m 39s
test (ubuntu-latest, 3.9)	5m 57s
test (ubuntu-latest, 3.10)	6m 11s
test (ubuntu-latest, 3.11)	6m 47s
test (ubuntu-latest, 3.12)	9m 13s
test (ubuntu-latest, 3.13)	8m 59s
test (windows-latest, 3.9)	9m 32s
test (windows-latest, 3.10)	8m 31s
test (windows-latest, 3.11)	12m 8s
test (windows-latest, 3.12)	12m 11s
test (windows-latest, 3.13)	12m 0s
	2h 5m 44s

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