Bump bufferutil from 4.0.6 to 4.0.7

Bumps [bufferutil](https://github.com/websockets/bufferutil) from 4.0.6 to 4.0.7.
- [Release notes](https://github.com/websockets/bufferutil/releases)
- [Commits](https://github.com/websockets/bufferutil/compare/v4.0.6...v4.0.7)

---
updated-dependencies:
- dependency-name: bufferutil
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -147,7 +147,7 @@
     "babel-register": "^6.26.0",
     "browserify-zlib": "^0.2.0",
     "buffer": "^6.0.3",
-    "bufferutil": "^4.0.6",
+    "bufferutil": "^4.0.7",
     "cfonts": "^3.1.1",
     "chai": "^4.3.6",
     "chalk": "^4.1.2",

yarn.lock

@@ -3610,10 +3610,10 @@ buffer@^6.0.3:
     base64-js "^1.3.1"
     ieee754 "^1.2.1"
 
-bufferutil@^4.0.6:
-  version "4.0.6"
-  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-4.0.6.tgz#ebd6c67c7922a0e902f053e5d8be5ec850e48433"
-  integrity sha512-jduaYOYtnio4aIAyc6UbvPCVcgq7nYpVnucyxr6eCYg/Woad9Hf/oxxBRDnGGjPfjUm6j5O/uBWhIu4iLebFaw==
+bufferutil@^4.0.7:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-4.0.7.tgz#60c0d19ba2c992dd8273d3f73772ffc894c153ad"
+  integrity sha512-kukuqc39WOHtdxtw4UScxF/WVnMFVSQVKhtx3AjZJzhd0RGZZldcrfSEbVsWWe6KNH253574cq5F+wpv0G9pJw==
   dependencies:
     node-gyp-build "^4.3.0"