Bump eslint from 7.21.0 to 7.25.0 (#50)

Bumps [eslint](https://github.com/eslint/eslint) from 7.21.0 to 7.25.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.21.0...v7.25.0)

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

package.json

@@ -35,7 +35,7 @@
     "axios": "^0.21.1",
     "chai": "^4.3.4",
     "chai-as-promised": "^7.1.1",
-    "eslint": "^7.21.0",
+    "eslint": "^7.25.0",
     "gulp": "^4.0.2",
     "mocha": "^8.3.0",
     "proxyquire": "^2.1.3",