Upgrade CodeMirror (#1176)

Author: microbit-robert

package-lock.json

@@ -8,12 +8,12 @@
   "dependencies": {
     "@chakra-ui/icons": "^2.1.1",
     "@chakra-ui/react": "^2.5.1",
-    "@codemirror/autocomplete": "^6.3.0",
-    "@codemirror/commands": "6.1.1",
-    "@codemirror/lang-python": "^6.0.2",
-    "@codemirror/language": "^6.2.1",
-    "@codemirror/state": "^6.1.2",
-    "@codemirror/view": "^6.3.0",
+    "@codemirror/autocomplete": "^6.16.0",
+    "@codemirror/commands": "6.5.0",
+    "@codemirror/lang-python": "^6.1.6",
+    "@codemirror/language": "^6.10.1",
+    "@codemirror/state": "^6.4.1",
+    "@codemirror/view": "^6.26.3",
     "@emotion/react": "^11.10.6",
     "@emotion/styled": "^11.10.6",
     "@microbit/microbit-fs": "^0.9.2",