chore: bump codemirror from 5.65.16 to 6.0.1

Bumps [codemirror](https://github.com/codemirror/basic-setup) from 5.65.16 to 6.0.1.
- [Changelog](https://github.com/codemirror/basic-setup/blob/main/CHANGELOG.md)
- [Commits](https://github.com/codemirror/basic-setup/commits/6.0.1)

---
updated-dependencies:
- dependency-name: codemirror
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/markdown/package.json

@@ -40,7 +40,7 @@
     "@contentful/f36-tokens": "^4.0.0",
     "@contentful/field-editor-shared": "^1.6.1",
     "@types/codemirror": "0.0.109",
-    "codemirror": "^5.65.11",
+    "codemirror": "^6.0.1",
     "constate": "^3.3.2",
     "emotion": "^10.0.17",
     "lodash": "^4.17.15",

yarn.lock

@@ -10128,12 +10128,12 @@ code-point-at@^1.0.0:
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
   integrity sha512-RpAVKQA5T63xEj6/giIbUEtZwJ4UFIc3ZtvEkiaUERylqe8xb5IvqcgOurZLahv93CLKfxcw5YI+DZcUBRyLXA==
 
-codemirror@^5.48.0, codemirror@^5.65.11:
+codemirror@^5.48.0:
   version "5.65.16"
   resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.65.16.tgz#efc0661be6bf4988a6a1c2fe6893294638cdb334"
   integrity sha512-br21LjYmSlVL0vFCPWPfhzUCT34FM/pAdK7rRIZwa0rrtrIdotvP4Oh4GUHsu2E3IrQMCfRkL/fN3ytMNxVQvg==
 
-codemirror@^6.0.0:
+codemirror@^6.0.0, codemirror@^6.0.1:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-6.0.1.tgz#62b91142d45904547ee3e0e0e4c1a79158035a29"
   integrity sha512-J8j+nZ+CdWmIeFIGXEFbFPtpiYacFMDR8GlHK3IyHQJMCaVRfGx9NT+Hxivv1ckLWPvNdZqndbr/7lVhrf/Svg==