Skip Python 2 versions when locating Python #6039

Job	Run time
cargo test \| ubuntu	3m 56s
cargo fmt	19s
cargo test \| macos	5m 48s
cargo clippy \| ubuntu	52s
cargo test \| windows	5m 32s
Determine changes	7s
cargo clippy \| windows	3m 2s
check windows trampoline	4m 13s
build binary \| linux	1m 58s
build binary \| macos aarch64	1m 19s
build binary \| macos x86_64	1m 42s
build binary \| windows	2m 11s
benchmarks	2m 19s
check cache \| macos aarch64	12s
check system \| python on macos aarch64	18s
check system \| homebrew python on macos aarch64	18s
check system \| python on macos x86_64	31s
ecosystem test \| prefecthq/prefect	2m 7s
check cache \| ubuntu	53s
ecosystem test \| pallets/flask	11s
check system \| python on debian	41s
check system \| python on fedora	34s
check system \| python on opensuse	36s
check system \| python on rocky linux 8	37s
check system \| python on rocky linux 9	35s
check system \| python on ubuntu	17s
check system \| alpine	28s
check system \| amazonlinux	28s
check system \| python via pyenv	1m 44s
check system \| pypy on ubuntu	33s
check system \| pyston	3m 55s
check system \| python3.13 on windows	1m 13s
check system \| python3.10 on windows	40s
check system \| python3.12 via chocolatey	1m 2s
check system \| python3.10 on windows x86	47s
check system \| conda3.8 on linux	45s
check system \| embedded python3.10 on windows	33s
check system \| conda3.11 on linux	37s
check system \| conda3.8 on windows	2m 8s
check system \| conda3.11 on windows	2m 4s
check system \| conda3.8 on macos	52s
check system \| conda3.11 on macos	42s
	59m 39s

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