Update dependency yjs to v13.6.20

Author: renovate[bot]

ghost/core/package.json

@@ -221,7 +221,7 @@
     "ws": "8.18.0",
     "xml": "1.0.1",
     "y-protocols": "1.0.6",
-    "yjs": "13.6.19"
+    "yjs": "13.6.20"
   },
   "optionalDependencies": {
     "@sentry/profiling-node": "7.119.0",

yarn.lock

@@ -21681,13 +21681,20 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/lexical/-/lexical-0.13.1.tgz#0abffe9bc05a7a9da8a6128ea478bf08c11654db"
   integrity sha512-jaqRYzVEfBKbX4FwYpd/g+MyOjRaraAel0iQsTrwvx3hyN0bswUZuzb6H6nGlFSjcdrc77wKpyKwoWj4aUd+Bw==
 
-[email protected], lib0@^0.2.85, lib0@^0.2.86:
+[email protected]:
   version "0.2.94"
   resolved "https://registry.yarnpkg.com/lib0/-/lib0-0.2.94.tgz#fc28b4b65f816599f1e2f59d3401e231709535b3"
   integrity sha512-hZ3p54jL4Wpu7IOg26uC7dnEWiMyNlUrb9KoG7+xYs45WkQwpVvKFndVq2+pqLYKe1u8Fp3+zAfZHVvTK34PvQ==
   dependencies:
     isomorphic.js "^0.2.4"
 
+lib0@^0.2.85, lib0@^0.2.98:
+  version "0.2.98"
+  resolved "https://registry.yarnpkg.com/lib0/-/lib0-0.2.98.tgz#fe55203b8586512c1837248d5f309d7dfd566f5d"
+  integrity sha512-XteTiNO0qEXqqweWx+b21p/fBnNHUA1NwAtJNJek1oPrewEZs2uiT4gWivHKr9GqCjDPAhchz0UQO8NwU3bBNA==
+  dependencies:
+    isomorphic.js "^0.2.4"
+
 [email protected]:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
@@ -31939,12 +31946,12 @@ yauzl@^2.10.0:
     buffer-crc32 "~0.2.3"
     fd-slicer "~1.1.0"
 
-[email protected].19:
-  version "13.6.19"
-  resolved "https://registry.yarnpkg.com/yjs/-/yjs-13.6.19.tgz#66999f41254ab65be8c8e71bd767d124ad600909"
-  integrity sha512-GNKw4mEUn5yWU2QPHRx8jppxmCm9KzbBhB4qJLUJFiiYD0g/tDVgXQ7aPkyh01YO28kbs2J/BEbWBagjuWyejw==
+[email protected].20:
+  version "13.6.20"
+  resolved "https://registry.yarnpkg.com/yjs/-/yjs-13.6.20.tgz#da878412688f107dc03faa4fc3cff37736fe5dfa"
+  integrity sha512-Z2YZI+SYqK7XdWlloI3lhMiKnCdFCVC4PchpdO+mCYwtiTwncjUbnRK9R1JmkNfdmHyDXuWN3ibJAt0wsqTbLQ==
   dependencies:
-    lib0 "^0.2.86"
+    lib0 "^0.2.98"
 
 [email protected]:
   version "3.1.1"