Update CHANGELOG

Author: khvzak

CHANGELOG.md

@@ -1,3 +1,12 @@
+## v0.2.2
+
+- Pass correct `target-dir` arg to cargo instead of `target` (mlua-rs/luarocks-build-rust-mlua#12)
+
+## v0.2.1 (yanked)
+
+- Pass `target_path` to cargo if it's set (mlua-rs/luarocks-build-rust-mlua#9)
+- Re-enable support for LuaRocks 3.1.x (mlua-rs/luarocks-build-rust-mlua#10)
+
 ## v0.2.0
 
 This release lines up with the mlua v0.9 changes