Bump pixelmatch from 5.2.1 to 5.3.0

Bumps [pixelmatch](https://github.com/mapbox/pixelmatch) from 5.2.1 to 5.3.0.
- [Release notes](https://github.com/mapbox/pixelmatch/releases)
- [Commits](mapbox/pixelmatch@v5.2.1...v5.3.0)

---
updated-dependencies:
- dependency-name: pixelmatch
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -21,7 +21,7 @@
     "esbuild": "^0.14.31",
     "esbuild-sass-plugin": "^2.2.6",
     "http-server": "^14.1.0",
-    "pixelmatch": "^5.2.1",
+    "pixelmatch": "^5.3.0",
     "puppeteer": "^13.5.2",
     "puppeteer-cluster": "^0.23.0"
   }