fix(deps): update rust crate git2 to 0.20.0 #2274

Job	Run time
rust-check / check	19s
docker-build / docker-build	39m 33s
rust-check / builds-with-minimal-deps	0s
rust-check / lints (macos-latest)	1m 55s
rust-check / security-audit	2m 40s
rust-check / lints (ubuntu-latest)	2m 26s
rust-check / lints (windows-latest)	2s
rust-check / test (macos-latest)	31s
rust-check / nfpm-build	1m 18s
rust-check / test (ubuntu-latest, sudo apt-get install -y libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev)	1m 12s
rust-check / test (windows-latest)	2s
rust-check / bench (macos-latest)	2m 15s
rust-check / bench (ubuntu-latest, sudo apt-get install -y libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev)	2m 33s
rust-check / mutation-testing	0s
rust-check / security-audit-minimal	0s
rust-check / bench (windows-latest)	2s
specdown / specdown (macos-latest)	2m 14s
specdown / specdown (ubuntu-latest, sudo apt-get install -y libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommo...	2m 20s
specdown / specdown (windows-latest)	2m 10s
release	0s
build	0s
docker-push	0s
cargo-publish	0s
Generate Homebrew Formula	0s
generate-github-release	0s
	1h 1m 32s

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