Update codex-companion version

Author: tfirdaus

composer.json

@@ -32,7 +32,7 @@
     "require-dev": {
         "dealerdirect/phpcodesniffer-composer-installer": "^1.0",
         "phpcompatibility/phpcompatibility-wp": "^2.1",
-        "syntatis/codex-companion": "v0.2",
+        "syntatis/codex-companion": "v0.2.1",
         "syntatis/coding-standard": "^1.4",
         "wp-cli/i18n-command": "^2.6"
     },