chore: add lefthook pre-commit hook for cookstyle and rspec

Author: damacus

lefthook.yml

@@ -0,0 +1,9 @@
+pre-commit:
+  parallel: true
+  commands:
+    cookstyle:
+      glob: "*.rb"
+      run: chef exec cookstyle --format simple {staged_files}
+    rspec:
+      glob: "*.rb"
+      run: chef exec rspec --format progress