Update web-ext to 5.4.1

Author: ghostwords

package.json

@@ -16,7 +16,7 @@
     "sinon": "2.0.0",
     "tooltipster": "4.2.6",
     "underscore": "1.9.1",
-    "web-ext": "~5.4.0"
+    "web-ext": "~5.4.1"
   },
   "private": true
 }

release-utils/make-signed-xpi.sh

@@ -4,7 +4,7 @@ set -e
 
 cd "$(dirname "$0")"
 
-LATEST_SDK_VERSION=5.4.0
+LATEST_SDK_VERSION=5.4.1
 WEB_EXT=../node_modules/.bin/web-ext
 
 # Auto-generated XPI name from 'web-ext sign'