Bump pixelmatch from 5.2.0 to 5.2.1

Bumps [pixelmatch](https://github.com/mapbox/pixelmatch) from 5.2.0 to 5.2.1.
- [Release notes](https://github.com/mapbox/pixelmatch/releases)
- [Commits](https://github.com/mapbox/pixelmatch/compare/v5.2.0...v5.2.1)

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

package-lock.json

@@ -10017,9 +10017,9 @@
       }
     },
     "pixelmatch": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/pixelmatch/-/pixelmatch-5.2.0.tgz",
-      "integrity": "sha512-TdleROuanI+Uo/4PcOAH7b7qgO4kjzJO8K4y/TBAo1wx/5BE8cn1B0I6Jfk3mKcJsGpWvX7zjM8OjU5o9i+aog==",
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/pixelmatch/-/pixelmatch-5.2.1.tgz",
+      "integrity": "sha512-WjcAdYSnKrrdDdqTcVEY7aB7UhhwjYQKYhHiBXdJef0MOaQeYpUdQ+iVyBLa5YBKS8MPVPPMX7rpOByISLpeEQ==",
       "dev": true,
       "requires": {
         "pngjs": "^4.0.1"