chore(deps): update styled-components and stylelint (#673)

* chore(deps): update styled-components

* chore(deps): update stylelint

* test: fix test snapshot

.stylelintrc

@@ -5,6 +5,10 @@
     "stylelint-config-styled-components",
     "stylelint-config-prettier"
   ],
-  "rules": {},
+  "rules": {
+    "value-keyword-case": ["lower", {
+      ignoreKeywords: "dummyValue"
+    }]
+  },
   "syntax": "scss"
 }

package.json

@@ -30,7 +30,7 @@
     "@types/react-dom": "^16.9.5",
     "@types/react-test-renderer": "^16.9.2",
     "@types/react-transition-group": "^4.2.3",
-    "@types/styled-components": "^4.4.0",
+    "@types/styled-components": "^5.0.1",
     "babel-loader": "^8.0.6",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.2",
@@ -53,10 +53,10 @@
     "standard-version": "^7.1.0",
     "storybook-readme": "^5.0.8",
     "storycap": "^2.3.4",
-    "styled-components": "^4.4.0",
+    "styled-components": "^5.0.1",
     "stylelint": "^13.2.0",
     "stylelint-config-prettier": "^8.0.1",
-    "stylelint-config-standard": "^19.0.0",
+    "stylelint-config-standard": "^20.0.0",
     "stylelint-config-styled-components": "^0.1.1",
     "stylelint-processor-styled-components": "^1.10.0",
     "ts-jest": "^25.2.1",
@@ -66,7 +66,7 @@
   "peerDependencies": {
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
-    "styled-components": "^4.4.0"
+    "styled-components": "^5.0.1"
   },
   "bugs": {
     "url": "https://github.com/kufu/smarthr-ui/issues"