composer update

src/composer.lock

@@ -921,16 +921,16 @@
         },
         {
             "name": "ckeditor/ckeditor",
-            "version": "4.23.0",
+            "version": "4.20.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ckeditor/ckeditor4-releases.git",
-                "reference": "13a70b2385e6ff7805c2faff1278fca6e42646f7"
+                "reference": "8cc8f1b065f93d90c305c2609fec4e4215dd20ba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ckeditor/ckeditor4-releases/zipball/13a70b2385e6ff7805c2faff1278fca6e42646f7",
-                "reference": "13a70b2385e6ff7805c2faff1278fca6e42646f7",
+                "url": "https://api.github.com/repos/ckeditor/ckeditor4-releases/zipball/8cc8f1b065f93d90c305c2609fec4e4215dd20ba",
+                "reference": "8cc8f1b065f93d90c305c2609fec4e4215dd20ba",
                 "shasum": ""
             },
             "type": "library",
@@ -965,7 +965,7 @@
                 "source": "https://github.com/ckeditor/ckeditor4",
                 "wiki": "https://ckeditor.com/docs/ckeditor4/latest/"
             },
-            "time": "2023-08-24T13:32:10+00:00"
+            "time": "2023-02-15T12:55:37+00:00"
         },
         {
             "name": "codemix/yii2-localeurls",