chore(deps): pin dependencies (#135)

package.json

@@ -82,8 +82,8 @@
     "@types/jest": "23.3.9",
     "@types/react": "16.7.7",
     "@types/react-dom": "16.0.10",
-    "@types/react-helmet": "^5.0.7",
-    "@types/webfontloader": "^1.6.29",
+    "@types/react-helmet": "5.0.7",
+    "@types/webfontloader": "1.6.29",
     "commitizen": "3.0.4",
     "cz-conventional-changelog": "2.1.0",
     "docz": "0.12.13",

yarn.lock

@@ -1992,7 +1992,7 @@
     "@types/node" "*"
     "@types/react" "*"
 
-"@types/react-helmet@^5.0.7":
+"@types/[email protected]":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@types/react-helmet/-/react-helmet-5.0.7.tgz#1cae65b2c37fe54cf56f40cd388836d4619dbc51"
   integrity sha512-FbDibfkcGsD/N+3k47bfLcr5uAzSi64LJ2OOILz/P5vtBwT5A92KZAU5H9/7OjhUN6au5k+BbNplhVfp6IXDcQ==
@@ -2025,7 +2025,7 @@
   resolved "https://registry.yarnpkg.com/@types/tmp/-/tmp-0.0.32.tgz#0d3cb31022f8427ea58c008af32b80da126ca4e3"
   integrity sha1-DTyzECL4Qn6ljACK8yuA2hJspOM=
 
-"@types/webfontloader@^1.6.29":
+"@types/[email protected]":
   version "1.6.29"
   resolved "https://registry.yarnpkg.com/@types/webfontloader/-/webfontloader-1.6.29.tgz#c6b5f6eb8ca31d0aae6b02b6c1300349dd93ea8e"
   integrity sha512-wobuM+LvpkzU296NsFVRGDAFWw3X2XEhrLHuvV+VGSbok6aOxQcymmopUFwNB69qy5oudHt9lYC0JF+z+DxFLw==