Bump sharp from 0.31.0 to 0.31.3

Bumps [sharp](https://github.com/lovell/sharp) from 0.31.0 to 0.31.3.
- [Release notes](https://github.com/lovell/sharp/releases)
- [Changelog](https://github.com/lovell/sharp/blob/main/docs/changelog.md)
- [Commits](https://github.com/lovell/sharp/compare/v0.31.0...v0.31.3)

---
updated-dependencies:
- dependency-name: sharp
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -45,7 +45,7 @@
     "responsive-loader": "^3.1.1",
     "sass": "^1.55.0",
     "sass-loader": "^13.0.2",
-    "sharp": "^0.31.0",
+    "sharp": "^0.31.3",
     "sitemap-webpack-plugin": "^1.1.1",
     "string-replace-loader": "^3.1.0",
     "svg-inline-loader": "^0.8.2",