Internal: Updated dependencies. [skip ci]

package.json

@@ -9,19 +9,19 @@
     "ckeditor5-lib"
   ],
   "dependencies": {
-    "@ckeditor/ckeditor5-core": "^18.0.0",
-    "@ckeditor/ckeditor5-ui": "^18.0.0",
-    "@ckeditor/ckeditor5-utils": "^18.0.0"
+    "@ckeditor/ckeditor5-core": "^19.0.0",
+    "@ckeditor/ckeditor5-ui": "^19.0.0",
+    "@ckeditor/ckeditor5-utils": "^19.0.0"
   },
   "devDependencies": {
-    "@ckeditor/ckeditor5-basic-styles": "^18.0.0",
-    "@ckeditor/ckeditor5-engine": "^18.0.0",
-    "@ckeditor/ckeditor5-essentials": "^18.0.0",
-    "@ckeditor/ckeditor5-heading": "^18.0.0",
-    "@ckeditor/ckeditor5-image": "^18.0.0",
-    "@ckeditor/ckeditor5-paragraph": "^18.0.0",
-    "@ckeditor/ckeditor5-table": "^18.0.0",
-    "@ckeditor/ckeditor5-editor-classic": "^18.0.0",
+    "@ckeditor/ckeditor5-basic-styles": "^19.0.0",
+    "@ckeditor/ckeditor5-engine": "^19.0.0",
+    "@ckeditor/ckeditor5-essentials": "^19.0.0",
+    "@ckeditor/ckeditor5-heading": "^19.0.0",
+    "@ckeditor/ckeditor5-image": "^19.0.0",
+    "@ckeditor/ckeditor5-paragraph": "^19.0.0",
+    "@ckeditor/ckeditor5-table": "^19.0.0",
+    "@ckeditor/ckeditor5-editor-classic": "^19.0.0",
     "eslint": "^5.5.0",
     "eslint-config-ckeditor5": "^2.0.0",
     "husky": "^2.4.1",