chore(deps-dev): bump @types/jest from 26.0.15 to 26.0.19

Bumps [@types/jest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/jest) from 26.0.15 to 26.0.19.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/jest)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -101,7 +101,7 @@
     "@nestjs/common": "^7.5.1",
     "@nestjs/core": "^7.5.1",
     "@nestjs/testing": "^7.6.5",
-    "@types/jest": "26.0.15",
+    "@types/jest": "26.0.19",
     "commitizen": "4.2.2",
     "coveralls": "3.1.0",
     "cz-conventional-changelog": "3.3.0",