Bump libffi-sys to 3.3.3 to avoid CI failure

This newer version of libffi-sys incorporates a `configure` script generated by
a newer version of autoconf, which avoids an incompatibility with uutools.

Author: Zalathar

Cargo.lock

@@ -2116,9 +2116,9 @@ dependencies = [
 
 [[package]]
 name = "libffi-sys"
-version = "3.3.2"
+version = "3.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b0d828d367b4450ed08e7d510dc46636cd660055f50d67ac943bfe788767c29"
+checksum = "90c6c6e17136d4bc439d43a2f3c6ccf0731cccc016d897473a29791d3c2160c3"
 dependencies = [
  "cc",
 ]