upgrade `gix` from v0.62 to v0.63 for security patches (#64) #221

Job	Run time
Lint	54s
cargo-deny	24s
Publish Check	27s
Test (ubuntu-22.04, --features git)	1m 14s
Test (ubuntu-22.04, --features sparse)	1m 5s
Test (ubuntu-22.04, --features local-builder,sparse)	59s
	5m 3s

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