Bumped Gscan and made rule check explicit to v2 set (#622)

* Bumped gscan to v3.0.0

* Added explicit v2 version check for gscan command

package.json

@@ -15,7 +15,7 @@
     "scripts": {
         "dev": "gulp",
         "zip": "gulp zip",
-        "test": "gscan .",
+        "test": "gscan --v2 .",
         "pretest": "gulp build",
         "preship": "yarn test",
         "ship": "STATUS=$(git status --porcelain); echo $STATUS; if [ -z \"$STATUS\" ]; then yarn version && git push --follow-tags; else echo \"Uncomitted changes found.\" && exit 1; fi",
@@ -49,7 +49,7 @@
         "autoprefixer": "9.6.1",
         "beeper": "1.1.1",
         "cssnano": "4.1.10",
-        "gscan": "2.9.0",
+        "gscan": "3.0.0",
         "gulp": "4.0.2",
         "gulp-livereload": "4.0.2",
         "gulp-postcss": "8.0.0",

yarn.lock

@@ -1654,9 +1654,10 @@ graceful-fs@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.0.tgz#8d8fdc73977cb04104721cb53666c1ca64cd328b"
 
-gscan@2.9.0:
-  version "2.9.0"
-  resolved "https://registry.yarnpkg.com/gscan/-/gscan-2.9.0.tgz#de169bd971043872ac830a65cd632149ecddbb8c"
+gscan@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/gscan/-/gscan-3.0.0.tgz#04e7a8eebff365c08d93323f281d652f32156c65"
+  integrity sha512-ihVSl8pBZjQwJvbdCZ5tmx808XjWcTdGUNIl+Drquohpo7738ybSScLGuKFgbnrtZwV5gYQ9FPwv0EK6HMMDzA==
   dependencies:
     "@tryghost/extract-zip" "1.6.6"
     "@tryghost/pretty-cli" "1.2.1"