updated core to 8.6.3

core/modules/locale/locale.libraries.yml

@@ -25,6 +25,6 @@ translations:
   # any time.
   js:
     # This file does not actually exist; it's a placeholder file that will be
-    # overriden by locale_js_alter(), to use the file that contains the actual
+    # overridden by locale_js_alter(), to use the file that contains the actual
     # translations, for the language used in the current request.
     locale.translation.js: {}

core/modules/locale/src/PluralFormula.php

@@ -36,7 +36,7 @@ class PluralFormula implements PluralFormulaInterface {
    *   ],
    * ]
    * @endcode
-   * @var []
+   * @var array
    */
   protected $formulae;