[Security] Bump lodash from 4.17.15 to 4.17.20

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.20. **This update includes security fixes.**
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.20)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: npmbuildbot-nextcloud[bot] <npmbuildbot-nextcloud[bot]@users.noreply.github.com>

package-lock.json

@@ -6848,9 +6848,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
+      "version": "4.17.20",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
     },
     "lodash.get": {
       "version": "4.4.2",

package.json

@@ -55,7 +55,7 @@
     "jquery-ui": "^1.12.1",
     "jquery-ui-dist": "^1.12.1",
     "jstimezonedetect": "^1.0.7",
-    "lodash": "^4.17.15",
+    "lodash": "^4.17.20",
     "marked": "^0.8.2",
     "moment": "^2.24.0",
     "moment-timezone": "^0.5.28",