Add lock files to .gitignore (guillaume-be#101)

* Add lock file to gitgnore

* Bumped dependencies

Author: guillaume-be

.gitignore

@@ -1,11 +1,13 @@
 main/target
+main/Cargo.lock
 python-bindings/build
 python-bindings/dist
 python-bindings/*egg-info*
 python-bindings/tests/__pycache__*
 python-bindings/__pycache__*
 python-bindings/*eggs*
 python-bindings/target
+python-bindings/Cargo.lock
 main/src/sentencepiece_model.rs
 **/*.rs.bk
 .idea*