Issue #3138792 by sja112, dww: Fix "compatibility" relevant typos in core

core/misc/jquery.cookie.shim.es6.js

@@ -115,7 +115,7 @@
    *   The name of the cookie.
    * @param {string|Object|Function|undefined} value
    *   A js-cookie converter callback when used as a getter. This callback must
-   *   be a function when using this shim for backwards-compatiblity with
+   *   be a function when using this shim for backwards-compatibility with
    *   jquery.cookie. When used as a setter, value is the string or JSON object
    *   to be used as the cookie value.
    * @param {Object|undefined} options

core/modules/rdf/tests/src/Traits/RdfParsingTrait.php

@@ -5,7 +5,7 @@
 use Drupal\Core\Url;
 
 /**
- * Override \EasyRdf_ParsedUri for PHP 7.4 compatibilty.
+ * Override \EasyRdf_ParsedUri for PHP 7.4 compatibility.
  *
  * @todo https://www.drupal.org/project/drupal/issues/3110972 Remove this work
  *   around.