build(deps): bump lodash from 4.17.23 to 4.18.1 in /labextension/ui-tests (#741)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.23 to 4.18.1.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.23...4.18.1)

---
updated-dependencies:
- dependency-name: lodash
  dependency-version: 4.18.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

labextension/ui-tests/yarn.lock

@@ -4188,9 +4188,9 @@ __metadata:
   linkType: hard
 
 "lodash@npm:^4.17.20, lodash@npm:^4.17.21, lodash@npm:^4.17.4":
-  version: 4.17.23
-  resolution: "lodash@npm:4.17.23"
-  checksum: 7daad39758a72872e94651630fbb54ba76868f904211089721a64516ce865506a759d9ad3d8ff22a2a49a50a09db5d27c36f22762d21766e47e3ba918d6d7bab
+  version: 4.18.1
+  resolution: "lodash@npm:4.18.1"
+  checksum: bb5f5b49aad29614e709af02b64c56b0f8b78c6a81434a3c1ae527d2f0f78ca08f9d9fb22aa825a053876c9d2166e9c01f31c356014b5e2bdc0556c057433102
   languageName: node
   linkType: hard