Bump cross-env from 7.0.2 to 7.0.3 (#15292)

Bumps [cross-env](https://github.com/kentcdodds/cross-env) from 7.0.2 to 7.0.3.
- [Release notes](https://github.com/kentcdodds/cross-env/releases)
- [Changelog](https://github.com/kentcdodds/cross-env/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kentcdodds/cross-env/compare/v7.0.2...v7.0.3)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -85,7 +85,7 @@
     "classnames": "^2.2.5",
     "color-blend": "^3.0.0",
     "compression-webpack-plugin": "^6.1.1",
-    "cross-env": "^7.0.2",
+    "cross-env": "^7.0.3",
     "css-loader": "^5.0.1",
     "cssnano": "^4.1.10",
     "detect-passive-events": "^2.0.2",