Bump @metamask/post-message-stream from 4.0.0 to 5.1.0 (#21)

Bumps [@metamask/post-message-stream](https://github.com/MetaMask/post-message-stream) from 4.0.0 to 5.1.0.
- [Release notes](https://github.com/MetaMask/post-message-stream/releases)
- [Changelog](https://github.com/MetaMask/post-message-stream/blob/main/CHANGELOG.md)
- [Commits](MetaMask/post-message-stream@v4.0.0...v5.1.0)

---
updated-dependencies:
- dependency-name: "@metamask/post-message-stream"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alex Donesky <[email protected]>
Co-authored-by: Mark Stacey <[email protected]>

package.json

@@ -24,7 +24,7 @@
   },
   "dependencies": {
     "@metamask/design-tokens": "^1.6.0",
-    "@metamask/post-message-stream": "^4.0.0",
+    "@metamask/post-message-stream": "^5.1.0",
     "globalthis": "1.0.1",
     "obj-multiplex": "^1.0.0",
     "pump": "^3.0.0",

yarn.lock

@@ -1497,13 +1497,21 @@
   resolved "https://registry.yarnpkg.com/@metamask/eslint-config/-/eslint-config-9.0.0.tgz#22d4911b705f7e4e566efbdda0e37912da33e30f"
   integrity sha512-mWlLGQKjXXFOj9EtDClKSoTLeQuPW2kM1w3EpUMf4goYAQ+kLXCCa8pEff6h8ApWAnjhYmXydA1znQ2J4XvD+A==
 
-"@metamask/post-message-stream@^4.0.0":
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/@metamask/post-message-stream/-/post-message-stream-4.0.0.tgz#72f120e562346ca86ccc9b3684023ad44265f0df"
-  integrity sha512-r0JcoWXNuHycProx8ClxiIElJY/GVb/0/WWXTMsZu7qDejLo52VNXlwfydCdVjbMXeoT2nK1Yt3d5gjmHy5BWw==
+"@metamask/post-message-stream@^5.1.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@metamask/post-message-stream/-/post-message-stream-5.1.0.tgz#3e9a2ed11b540b3868a0a28ffa8ec5a6e5fca29d"
+  integrity sha512-BQi/H67iM7wdtmvoPfgW9bazk/WjvRhXRa5lQ1FpgDlASv1bsCDJaQQ83Q3BwYyisnpnjgJRuC/2bRmas0LMxA==
   dependencies:
+    "@metamask/utils" "^2.0.0"
     readable-stream "2.3.3"
 
+"@metamask/utils@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@metamask/utils/-/utils-2.0.0.tgz#fe7e970416a256751c429f4a5e96aec6c4366ba7"
+  integrity sha512-AZ63AhRxAZXll+/SEiyEXgrxuAL4yOj0ny4V36VgPmTDvt+7GrmVJWrQF3o5PZZWV6ooaHZ9291RZHRcKZm0HA==
+  dependencies:
+    fast-deep-equal "^3.1.3"
+
 "@nodelib/[email protected]":
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.4.tgz#d4b3549a5db5de2683e0c1071ab4f140904bbf69"