Fix QEMU-based Linux wheel jobs

[kevinhartman]

Summary

There appears to be an issue with memory consumption under the hood when using QEMU with Rust cargo:
rust-lang/cargo#10583.

This is causing the CI wheel workflow to run out of memory and fail for QEMU-based jobs, e.g.:
https://github.com/Qiskit/qiskit-terra/actions/runs/3244845622/jobs/5322060193#step:6:1964

Due to this issue the original release of Terra 0.22.0 never actually produced wheels for Linux aarch64, ppc64le, and s390x. A separate branch has been created to manually retrigger the 0.22.0 release wheel jobs, which have now completed successfully (also used in validating the changes in this PR).
https://github.com/Qiskit/qiskit-terra/compare/0.22.0...Qiskit:qiskit-terra:dnm-non-x86-64-wheels-retry?expand=1

Details and comments

From the discussion on the linked issue, the workaround is to tell cargo to use the Git executable directly, rather than libgit2.

Edit:
As noted by @mtreinish below, setting CARGO_NET_GIT_FETCH_WITH_CLI=true in the pyproject.toml changes the behavior to use the Git executable for all Linux configurations, including x64.

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[mtreinish]

I guess this changes the git usage for cargo on x86_64 builds too, but that shouldn't be an issue. Thanks for fixing this!

[coveralls]

Pull Request Test Coverage Report for Build 3316257189

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 28 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.04%) to 84.378%

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Files with Coverage Reduction	New Missed Lines	%
src/results/marginalization.rs	14	80.46%
src/sampled_exp_val.rs	14	63.93%

Totals
Change from base Build 3310085506:	-0.04%
Covered Lines:	61678
Relevant Lines:	73097

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💛 - Coveralls