Pin dependency @gitlab/eslint-plugin to 6.0.0

package.json

@@ -163,7 +163,7 @@
   },
   "devDependencies": {
     "@babel/plugin-transform-modules-commonjs": "^7.10.1",
-    "@gitlab/eslint-plugin": "^6.0.0",
+    "@gitlab/eslint-plugin": "6.0.0",
     "@testing-library/dom": "^7.16.2",
     "@vue/test-utils": "1.1.2",
     "acorn": "^6.3.0",

yarn.lock

@@ -845,7 +845,7 @@
   resolved "https://registry.yarnpkg.com/@gitlab/at.js/-/at.js-1.5.5.tgz#5f6bfe6baaef360daa9b038fa78798d7a6a916b4"
   integrity sha512-282Dn3SPVsUHVDhMsXgfnv+Rzog0uxecjttxGRQvxh25es1+xvkGQFsvJfkSKJ3X1kHVkSjKf+Tt5Rra+Jhp9g==
 
-"@gitlab/eslint-plugin@^6.0.0":
+"@gitlab/eslint-plugin@6.0.0":
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/@gitlab/eslint-plugin/-/eslint-plugin-6.0.0.tgz#deb18f63808af1cb1cc117a92558f07edb1e2256"
   integrity sha512-3TihEG0EzbGtc6wxZLANZN1ge2tnAv0qU8w6smUACmPhqFj0/DrCq9V6QKPqAHk/Yn3hrfGk5nznAzzuMEgwDQ==