build(deps): bump @google/genai from 1.48.0 to 1.50.0

Bumps [@google/genai](https://github.com/googleapis/js-genai) from 1.48.0 to 1.50.0.
- [Release notes](https://github.com/googleapis/js-genai/releases)
- [Changelog](https://github.com/googleapis/js-genai/blob/main/CHANGELOG.md)
- [Commits](googleapis/js-genai@v1.48.0...v1.50.0)

---
updated-dependencies:
- dependency-name: "@google/genai"
  dependency-version: 1.50.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -37,7 +37,7 @@
   },
   "dependencies": {
     "@anthropic-ai/sdk": "^0.88.0",
-    "@google/genai": "^1.48.0",
+    "@google/genai": "^1.50.0",
     "@meteora-ag/dynamic-bonding-curve-sdk": "1.5.7",
     "@nirholas/pump-sdk": "1.30.0",
     "@payai/facilitator": "^2.3.6",