Update dependency autoprefixer to v9.8.0

Author: renovate-bot

package.json

@@ -101,7 +101,7 @@
 		"@types/prop-types": "15.7.1",
 		"@types/react": "16.8.20",
 		"@types/react-transition-group": "2.9.2",
-		"autoprefixer": "9.6.1",
+		"autoprefixer": "9.8.0",
 		"babel-eslint": "10.0.2",
 		"babel-jest": "24.8.0",
 		"babel-loader": "8.0.6",