Update deps

Signed-off-by: Jack Cherng <[email protected]>

Author: jfcherng

Diff for: composer.json

@@ -32,7 +32,7 @@
         "nicmart/string-template": "~0.1"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^2.15",
+        "friendsofphp/php-cs-fixer": "^2.16",
         "phan/phan": "^2.0",
         "phpunit/phpunit": "^7.5 || ^8.0",
         "squizlabs/php_codesniffer": "^3.5"