chore: track Cargo.lock for reproducible builds (#10)

This project builds a cdylib that serves as a Lua native module loaded
at runtime. It is effectively a final build artifact rather than a
dependency consumed by other Rust crates.

Author: cshuaimin

.gitignore

@@ -3,10 +3,6 @@
 debug/
 target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk