chore(deps-dev): bump @types/jest from 26.0.19 to 26.0.20 (#989)

Bumps [@types/jest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/jest) from 26.0.19 to 26.0.20.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/jest)

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

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

package.json

@@ -182,7 +182,7 @@
     "@types/has-ansi": "^3.0.0",
     "@types/helmet": "4.0.0",
     "@types/ip": "^1.1.0",
-    "@types/jest": "^26.0.19",
+    "@types/jest": "^26.0.20",
     "@types/json-stringify-safe": "^5.0.0",
     "@types/mongodb": "^3.6.3",
     "@types/mongodb-uri": "^0.9.0",