deps(deps): bump @google/generative-ai from 0.2.1 to 0.21.0 (#77)

Bumps [@google/generative-ai](https://github.com/google/generative-ai-js) from 0.2.1 to 0.21.0.
- [Release notes](https://github.com/google/generative-ai-js/releases)
- [Changelog](https://github.com/google-gemini/generative-ai-js/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google/generative-ai-js/compare/@google/generative-ai@0.2.1...v0.21.0)

---
updated-dependencies:
- dependency-name: "@google/generative-ai"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: İbrahim <neodevils_contact@icloud.com>

package.json

@@ -25,7 +25,7 @@
     },
     "homepage": "https://github.com/minesa-hub/kaeru#readme",
     "dependencies": {
-        "@google/generative-ai": "^0.2.1",
+        "@google/generative-ai": "^0.21.0",
         "@iamtraction/google-translate": "^2.0.1",
         "chalk": "^5.4.1",
         "cookie-parser": "^1.4.7",