Bump lodash from 4.17.19 to 4.17.21 in /samples/react-enhanced-powerapps

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.19 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.19...4.17.21)

---
updated-dependencies:
- dependency-name: lodash
  dependency-type: direct:production
...

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

samples/react-enhanced-powerapps/package-lock.json

@@ -15946,9 +15946,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.19",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._basecopy": {
       "version": "3.0.1",

samples/react-enhanced-powerapps/package.json

@@ -21,7 +21,7 @@
         "@microsoft/sp-webpart-base": "1.13.1",
         "@pnp/spfx-controls-react": "1.19.0",
         "@pnp/spfx-property-controls": "1.19.0",
-        "lodash": ">=4.17.19",
+        "lodash": ">=4.17.21",
         "lodash.template": ">=4.5.0",
         "office-ui-fabric-react": "6.214.0",
         "react": "^16.13.1",