build(deps): bump actions/checkout from 6.0.2 to 7.0.0 #2389

Job	Run time
Decide which wheel types to build	3s
Build source distribution	17s
manylinux_aarch64 wheels	4m 29s
musllinux_x86_64 wheels	3m 18s
musllinux_x86_64 wheels	6m 41s
manylinux_x86_64 wheels	2m 56s
manylinux_x86_64 wheels	6m 13s
manylinux_aarch64 wheels	6m 13s
test_attaching_to_uv_interpreters (3.13)	43s
test_aarch64_wheels (3.13)	1m 34s
test_aarch64_wheels (3.15)	1m 18s
test_wheels_in_debian	1m 5s
test_aarch64_wheels (3.9)	1m 15s
test_wheels_in_fedora	56s
test_aarch64_wheels (3.14)	1m 13s
test_wheels_in_arch	50s
test_in_alpine	43s
test_free_threading (3.13)	2m 4s
test_free_threading (3.15)	1m 46s
test_wheels (3.13t)	2m 24s
test_wheels (3.12)	59s
test_attaching_to_eol_interpreters (2.7)	1m 4s
test_wheels (3.11)	1m 26s
test_attaching_to_eol_interpreters (3.7)	1m 30s
test_wheels (3.9)	1m 21s
test_wheels (3.14)	1m 16s
test_free_threading (3.14)	2m 11s
test_wheels (3.15)	1m 6s
test_wheels (3.13)	1m 22s
test_wheels (3.15t)	2m 20s
test_wheels (3.10)	54s
test_wheels (3.14t)	2m 37s
upload_pypi	-1s
	1h 4m 6s

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