Update eslint requirement from 5.15.2 to 5.15.3

Updates the requirements on [eslint](https://github.com/eslint/eslint) to permit the latest version.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v5.15.2...v5.15.3)

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

Author: dependabot-support

package.json

@@ -51,7 +51,7 @@
     "enzyme": "3.9.0",
     "enzyme-adapter-react-16": "1.11.2",
     "enzyme-to-json": "3.3.5",
-    "eslint": "5.15.2",
+    "eslint": "5.15.3",
     "eslint-plugin-react": "7.12.4",
     "file-loader": "3.0.1",
     "html-loader": "0.5.5",