Bump lodash from 4.17.13 to 4.17.21

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.13 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.13...4.17.21)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -98,7 +98,7 @@
   },
   "dependencies": {
     "gitignore-to-glob": "github:patbenatar/gitignore-to-glob",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.21",
     "glob": "^7.1.1",
     "mkdirp": "^0.5.1",
     "vscode-cache": "^0.3.0"