feat(richtext-lexical)!: upgrade lexical from 0.16.0 to 0.16.1 (#7009)

**BREAKING:** Lexical may introduce undocumented breaking changes, if
you use the lexical API directly. Please consult their changelog:
https://github.com/facebook/lexical/releases/tag/v0.16.1

test/package.json

@@ -13,8 +13,8 @@
   },
   "devDependencies": {
     "@aws-sdk/client-s3": "^3.525.0",
-    "@lexical/headless": "0.16.0",
-    "@lexical/markdown": "0.16.0",
+    "@lexical/headless": "0.16.1",
+    "@lexical/markdown": "0.16.1",
     "@payloadcms/db-mongodb": "workspace:*",
     "@payloadcms/db-postgres": "workspace:*",
     "@payloadcms/email-nodemailer": "workspace:*",