Bump lodash from 4.17.10 to 4.17.21 in /part2/VulnerableAppTwo

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.10 to 4.17.21.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.10...4.17.21)

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

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

part2/VulnerableAppTwo/package.json

@@ -8,7 +8,7 @@
   },
   "dependencies": {
     "express": "4.16.0", // Known to have vulnerabilities in this version
-    "lodash": "4.17.10", // Vulnerable version
+    "lodash": "4.17.21", // Vulnerable version
     "marked": "0.3.6", // Vulnerable version
     "mongoose": "5.0.16", // Known vulnerabilities in this version
     "request": "2.81.0" // Deprecated and has known vulnerabilities