Adjust git paths for command capture, repo clone destinations #42

Job	Run time
Lint Bazel files with buildifier	20s
Test nanobind_example on ubuntu-latest w/ Python 3.8	29s
Test nanobind_example on ubuntu-latest w/ Python 3.9	32s
Test nanobind_example on ubuntu-latest w/ Python 3.10	27s
Test nanobind_example on ubuntu-latest w/ Python 3.11	24s
Test nanobind_example on ubuntu-latest w/ Python 3.12	47s
Test nanobind_example on macos-latest w/ Python 3.8	1m 25s
Test nanobind_example on macos-latest w/ Python 3.9	1m 14s
Test nanobind_example on macos-latest w/ Python 3.10	1m 14s
Test nanobind_example on macos-latest w/ Python 3.11	1m 44s
Test nanobind_example on macos-latest w/ Python 3.12	1m 33s
Test nanobind_example on windows-latest w/ Python 3.8	2m 4s
Test nanobind_example on windows-latest w/ Python 3.9	2m 41s
Test nanobind_example on windows-latest w/ Python 3.10	3m 7s
Test nanobind_example on windows-latest w/ Python 3.11	2m 6s
Test nanobind_example on windows-latest w/ Python 3.12	2m 14s
	22m 21s

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