MDL-70305 lib: Update thirdpartylibs chartjs version

lib/amd/src/chartjs-lazy.js

@@ -4,6 +4,17 @@
  * (c) 2020 Chart.js Contributors
  * Released under the MIT License
  */
+
+/**
+ * Description of import into Moodle:
+ *
+ * - Download Chart.bundle.js from https://github.com/chartjs/Chart.js/releases.
+ * - Copy Chart.bundle.js content to lib/amd/src/chartjs-lazy.js.
+ * - Convert line endings to LF-Unix format.
+ * - Keep these instructions to the file.
+ * - Visit lib/tests/other/chartjstestpage.php to see if the library still works after the update.
+ */
+
 (function (global, factory) {
 typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
 typeof define === 'function' && define.amd ? define(factory) :

lib/thirdpartylibs.xml

@@ -242,7 +242,7 @@
     <location>amd/src/chartjs-lazy.js</location>
     <name>Chart.js</name>
     <license>MIT</license>
-    <version>2.7.0</version>
+    <version>2.9.4</version>
   </library>
   <library>
     <location>maxmind/GeoIp2</location>