⬆️ Bump @types/jest from 26.0.19 to 26.0.20

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>

package.json

@@ -30,7 +30,7 @@
   "devDependencies": {
     "@semantic-release/git": "^9.0.0",
     "@types/fs-extra": "^9.0.6",
-    "@types/jest": "^26.0.19",
+    "@types/jest": "^26.0.20",
     "@zeit/ncc": "^0.22.3",
     "jest": "^26.6.3",
     "semantic-release": "^17.3.1",