Bump @types/lodash in /AdminUI/LearningHub.Nhs.AdminUI

Bumps [@types/lodash](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/lodash) from 4.17.17 to 4.17.20.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/lodash)

---
updated-dependencies:
- dependency-name: "@types/lodash"
  dependency-version: 4.17.20
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

AdminUI/LearningHub.Nhs.AdminUI/package-lock.json

@@ -61,7 +61,7 @@
     "@types/jquery": "^3.3.32",
     "@types/jquery-match-height": "^0.7.8",
     "@types/js-cookie": "2.2.1",
-    "@types/lodash": "4.17.17",
+    "@types/lodash": "4.17.20",
     "@types/openseadragon": "^2.4.5",
     "@types/sanitize-html": "^2.16.0",
     "@types/vuelidate": "^0.7.22",