Bump yeoman-generator from 2.0.3 to 4.9.0

Bumps [yeoman-generator](https://github.com/yeoman/generator) from 2.0.3 to 4.9.0.
- [Release notes](https://github.com/yeoman/generator/releases)
- [Commits](yeoman/generator@v2.0.3...v4.9.0)

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

Author: dependabot-preview[bot]

package.json

@@ -28,7 +28,7 @@
   ],
   "dependencies": {
     "to-case": "^2.0.0",
-    "yeoman-generator": "^2.0.3",
+    "yeoman-generator": "^4.9.0",
     "yosay": "^2.0.0"
   },
   "devDependencies": {