Update deepslate to fix bell and sign item rendering

Author: misode

package-lock.json

@@ -39,7 +39,7 @@
     "deepslate-1.18": "npm:deepslate@0.9.0-beta.9",
     "deepslate-1.18.2": "npm:deepslate@0.9.0",
     "deepslate-1.20.4": "npm:deepslate@0.20.1",
-    "deepslate": "^0.22.0",
+    "deepslate": "^0.22.1",
     "highlight.js": "^11.5.1",
     "howler": "^2.2.3",
     "js-yaml": "^3.14.1",