build(deps-dev): bump @stellar/stellar-sdk from 14.6.1 to 16.0.1 in /sdk

Bumps [@stellar/stellar-sdk](https://github.com/stellar/js-stellar-sdk) from 14.6.1 to 16.0.1.
- [Release notes](https://github.com/stellar/js-stellar-sdk/releases)
- [Changelog](https://github.com/stellar/js-stellar-sdk/blob/main/CHANGELOG.md)
- [Commits](stellar/js-stellar-sdk@v14.6.1...v16.0.1)

---
updated-dependencies:
- dependency-name: "@stellar/stellar-sdk"
  dependency-version: 16.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

sdk/package.json

@@ -62,7 +62,7 @@
     "events": "^3.3.0"
   },
   "devDependencies": {
-    "@stellar/stellar-sdk": "^14.5.0",
+    "@stellar/stellar-sdk": "^16.0.1",
     "@types/jest": "^30.0.0",
     "@types/node": "^26.0.0",
     "@typescript-eslint/eslint-plugin": "^8.60.0",