Revert "fix(deps): update codemirror (#856)" (#862)

This reverts commit 176cd7e.

Author: mjfwebb

package.json

@@ -42,11 +42,11 @@
     },
     "author": "Neo4j",
     "dependencies": {
-        "@codemirror/autocomplete": "6.19.1",
-        "@codemirror/commands": "6.10.0",
+        "@codemirror/autocomplete": "6.19.0",
+        "@codemirror/commands": "6.9.0",
         "@codemirror/lang-javascript": "6.2.4",
         "@codemirror/language": "6.11.3",
-        "@codemirror/lint": "6.9.1",
+        "@codemirror/lint": "6.9.0",
         "@codemirror/search": "6.5.11",
         "@codemirror/state": "6.5.2",
         "@codemirror/view": "6.38.6",