Update minor devDeps

Author: renovate-bot

package.json

@@ -62,7 +62,7 @@
     "@hot-loader/react-dom": "16.14.0",
     "@percy/storybook": "3.3.1",
     "@storybook/react": "5.3.21",
-    "autoprefixer": "10.1.0",
+    "autoprefixer": "10.2.1",
     "babel-eslint": "10.1.0",
     "babel-jest": "26.6.3",
     "babel-loader": "8.2.2",
@@ -82,7 +82,7 @@
     "jest-cli": "26.6.3",
     "mkdirp": "1.0.4",
     "node-sass": "4.14.1",
-    "postcss": "8.2.2",
+    "postcss": "8.2.4",
     "postcss-combine-duplicated-selectors": "10.0.2",
     "postcss-custom-properties": "8.0.11",
     "postcss-remove-root": "0.0.2",
@@ -97,7 +97,7 @@
     "rimraf": "3.0.2",
     "sass-loader": "7.1.0",
     "style-loader": "2.0.0",
-    "webpack": "4.44.2",
+    "webpack": "4.45.0",
     "webpack-cli": "3.3.12",
     "webpack-dev-server": "3.11.1"
   },