Bump socket.io from 2.4.1 to 2.5.1 in /docs (#546)

Bumps [socket.io](https://github.com/socketio/socket.io) from 2.4.1 to 2.5.1.
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/2.5.1/CHANGELOG.md)
- [Commits](socketio/socket.io@2.4.1...2.5.1)

---
updated-dependencies:
- dependency-name: socket.io
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/yarn.lock

@@ -5350,17 +5350,17 @@ engine.io-parser@~2.2.0:
     blob "0.0.5"
     has-binary2 "~1.0.2"
 
-engine.io@~3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.5.0.tgz#9d6b985c8a39b1fe87cd91eb014de0552259821b"
-  integrity sha512-21HlvPUKaitDGE4GXNtQ7PLP0Sz4aWLddMPw2VTyFz1FVZqu/kZsJUO8WNpKuE/OCL7nkfRaOui2ZCJloGznGA==
+engine.io@~3.6.0:
+  version "3.6.2"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.6.2.tgz#b5d0fffafdd8525dbcd10b3ab5d8337271c3c36b"
+  integrity sha512-C4JjGQZLY3kWlIDx0BQNKizbrfpb7NahxDztGdN5jrPK2ghmXiNDN+E/t0JzDeNRZxPVaszxEng42Pmj27X/0w==
   dependencies:
     accepts "~1.3.4"
     base64id "2.0.0"
     cookie "~0.4.1"
     debug "~4.1.0"
     engine.io-parser "~2.2.0"
-    ws "~7.4.2"
+    ws "~7.5.10"
 
 enhanced-resolve@^4.3.0:
   version "4.3.0"
@@ -12995,10 +12995,10 @@ [email protected]:
     socket.io-parser "~3.3.0"
     to-array "0.1.4"
 
-socket.io-client@2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.4.0.tgz#aafb5d594a3c55a34355562fc8aea22ed9119a35"
-  integrity sha512-M6xhnKQHuuZd4Ba9vltCLT9oa+YvTsP8j9NcEiLElfIg8KeYPyhWOes6x4t+LTAC8enQbE/995AdTem2uNyKKQ==
+socket.io-client@2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.5.0.tgz#34f486f3640dde9c2211fce885ac2746f9baf5cb"
+  integrity sha512-lOO9clmdgssDykiOmVQQitwBAF3I6mYcQAo7hQ7AM6Ny5X7fp8hIJ3HcQs3Rjz4SoggoxA1OgrQyY8EgTbcPYw==
   dependencies:
     backo2 "1.0.2"
     component-bind "1.0.0"
@@ -13031,15 +13031,15 @@ socket.io-parser@~3.4.0:
     isarray "2.0.1"
 
 socket.io@^2.3.0:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.4.1.tgz#95ad861c9a52369d7f1a68acf0d4a1b16da451d2"
-  integrity sha512-Si18v0mMXGAqLqCVpTxBa8MGqriHGQh8ccEOhmsmNS3thNCGBwO8WGrwMibANsWtQQ5NStdZwHqZR3naJVFc3w==
+  version "2.5.1"
+  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.5.1.tgz#224459ecf13ab66bfc7fb6dd0c6bf760a9895e7f"
+  integrity sha512-eaTE4tBKRD6RFoetquMbxgvcpvoDtRyIlkIMI/SMK2bsKvbENTsDeeu4GJ/z9c90yOWxB7b/eC+yKLPbHnH6bA==
   dependencies:
     debug "~4.1.0"
-    engine.io "~3.5.0"
+    engine.io "~3.6.0"
     has-binary2 "~1.0.2"
     socket.io-adapter "~1.1.0"
-    socket.io-client "2.4.0"
+    socket.io-client "2.5.0"
     socket.io-parser "~3.4.0"
 
 [email protected]:
@@ -15051,6 +15051,11 @@ ws@~7.4.2:
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.2.tgz#782100048e54eb36fe9843363ab1c68672b261dd"
   integrity sha512-T4tewALS3+qsrpGI/8dqNMLIVdq/g/85U98HPMa6F0m6xTbvhXU6RCQLqPH3+SlomNV/LdY6RXEbBpMH6EOJnA==
 
+ws@~7.5.10:
+  version "7.5.10"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.10.tgz#58b5c20dc281633f6c19113f39b349bd8bd558d9"
+  integrity sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ==
+
 xdg-basedir@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-4.0.0.tgz#4bc8d9984403696225ef83a1573cbbcb4e79db13"