Bump polished from 3.6.6 to 3.6.7

Bumps [polished](https://github.com/styled-components/polished) from 3.6.6 to 3.6.7.
- [Release notes](https://github.com/styled-components/polished/releases)
- [Commits](styled-components/polished@v3.6.6...v3.6.7)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -31,7 +31,7 @@
     "isomorphic-unfetch": "^3.0.0",
     "js-base64": "^3.5.2",
     "next": "^9.2.2",
-    "polished": "^3.6.6",
+    "polished": "^3.6.7",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "styled-components": "^4.4.1",

yarn.lock

@@ -6298,10 +6298,10 @@ [email protected]:
   dependencies:
     ts-pnp "^1.1.2"
 
-polished@^3.6.6:
-  version "3.6.6"
-  resolved "https://registry.yarnpkg.com/polished/-/polished-3.6.6.tgz#91ef9eface9be5366c07672b63b736f50c151185"
-  integrity sha512-yiB2ims2DZPem0kCD6V0wnhcVGFEhNh0Iw0axNpKU+oSAgFt6yx6HxIT23Qg0WWvgS379cS35zT4AOyZZRzpQQ==
+polished@^3.6.7:
+  version "3.6.7"
+  resolved "https://registry.yarnpkg.com/polished/-/polished-3.6.7.tgz#44cbd0047f3187d83db0c479ef0c7d5583af5fb6"
+  integrity sha512-b4OViUOihwV0icb9PHmWbR+vPqaSzSAEbgLskvb7ANPATVXGiYv/TQFHQo65S53WU9i5EQ1I03YDOJW7K0bmYg==
   dependencies:
     "@babel/runtime" "^7.9.2"