Bump autoprefixer from 9.7.3 to 9.7.4 (#30030)

Bumps [autoprefixer](https://github.com/postcss/autoprefixer) from 9.7.3 to 9.7.4.
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/postcss/autoprefixer/compare/9.7.3...9.7.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -1516,17 +1516,17 @@
       "dev": true
     },
     "autoprefixer": {
-      "version": "9.7.3",
-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.7.3.tgz",
-      "integrity": "sha512-8T5Y1C5Iyj6PgkPSFd0ODvK9DIleuPKUPYniNxybS47g2k2wFgLZ46lGQHlBuGKIAEV8fbCDfKCCRS1tvOgc3Q==",
+      "version": "9.7.4",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.7.4.tgz",
+      "integrity": "sha512-g0Ya30YrMBAEZk60lp+qfX5YQllG+S5W3GYCFvyHTvhOki0AEQJLPEcIuGRsqVwLi8FvXPVtwTGhfr38hVpm0g==",
       "dev": true,
       "requires": {
-        "browserslist": "^4.8.0",
-        "caniuse-lite": "^1.0.30001012",
+        "browserslist": "^4.8.3",
+        "caniuse-lite": "^1.0.30001020",
         "chalk": "^2.4.2",
         "normalize-range": "^0.1.2",
         "num2fraction": "^1.2.2",
-        "postcss": "^7.0.23",
+        "postcss": "^7.0.26",
         "postcss-value-parser": "^4.0.2"
       }
     },

package.json

@@ -97,7 +97,7 @@
     "@babel/preset-env": "^7.8.3",
     "@rollup/plugin-commonjs": "^11.0.1",
     "@rollup/plugin-node-resolve": "^7.0.0",
-    "autoprefixer": "^9.7.3",
+    "autoprefixer": "^9.7.4",
     "babel-eslint": "^10.0.3",
     "babel-plugin-istanbul": "^6.0.0",
     "bundlesize": "^0.18.0",