deps: bump @types/jest from 26.0.3 to 26.0.4 (#263)

Bumps [@types/jest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/jest) from 26.0.3 to 26.0.4.
- [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

@@ -54,7 +54,7 @@
     "node-fetch": "^2.6.0"
   },
   "devDependencies": {
-    "@types/jest": "^26.0.3",
+    "@types/jest": "^26.0.4",
     "@types/node": "~12",
     "@types/node-fetch": "^2.5.7",
     "@typescript-eslint/parser": "^3.5.0",