fix: upgrade bufferutil from 4.0.7 to 4.0.8 (#148)

Snyk has created this PR to upgrade bufferutil from 4.0.7 to 4.0.8.

See this package in yarn:
bufferutil

See this project in Snyk:
https://app.snyk.io/org/mike.gorman/project/fb3fb596-2f06-4d4e-b7a9-ba24f8b49d0a?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

Author: mikegorman-nf

package.json

@@ -66,7 +66,7 @@
     "async-mutex": "^0.5.0",
     "asynckit": "^0.4.0",
     "buffer": "^6.0.3",
-    "bufferutil": "^4.0.6",
+    "bufferutil": "^4.0.8",
     "chnl": "^1.2.0",
     "elapsed-time": "^0.0.1",
     "es6-object-assign": "^1.1.0",

yarn.lock

@@ -2275,10 +2275,10 @@ buffer@^6.0.3:
     base64-js "^1.3.1"
     ieee754 "^1.2.1"
 
-bufferutil@^4.0.6:
-  version "4.0.7"
-  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-4.0.7.tgz#60c0d19ba2c992dd8273d3f73772ffc894c153ad"
-  integrity sha512-kukuqc39WOHtdxtw4UScxF/WVnMFVSQVKhtx3AjZJzhd0RGZZldcrfSEbVsWWe6KNH253574cq5F+wpv0G9pJw==
+bufferutil@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/bufferutil/-/bufferutil-4.0.8.tgz#1de6a71092d65d7766c4d8a522b261a6e787e8ea"
+  integrity sha512-4T53u4PdgsXqKaIctwF8ifXlRTTmEPJ8iEPWFdGZvcf7sbwYo6FKFEX9eNNAnzFZ7EzJAQ3CJeOtCRA4rDp7Pw==
   dependencies:
     node-gyp-build "^4.3.0"