revert(boil): Vendor openssl for better portability (#1467)

This reverts commit b1c124d.

Author: NickLarsenNZ

Cargo.lock

@@ -12,7 +12,7 @@ cap-std = "4.0.2"
 clap = { version = "4.5.41", features = ["derive"] }
 clap_complete = "4.5.55"
 clap_complete_nushell = "4.5.8"
-git2 = { version = "0.20.1", features = ["vendored-openssl"] }
+git2 = "0.20.1"
 glob = "0.3.2"
 oci-spec = "0.9.0"
 rstest = "0.26.1"