Bump @babel/preset-env from 7.25.7 to 7.29.0 in /ruby-gem/spec/dummy

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.25.7 to 7.29.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.29.0/packages/babel-preset-env)

---
updated-dependencies:
- dependency-name: "@babel/preset-env"
  dependency-version: 7.29.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

ruby-gem/spec/dummy/package.json

@@ -19,7 +19,7 @@
     "@babel/plugin-proposal-class-properties": "^7.18.6",
     "@babel/plugin-proposal-object-rest-spread": "^7.20.7",
     "@babel/plugin-transform-runtime": "7",
-    "@babel/preset-env": "^7.25.7",
+    "@babel/preset-env": "^7.29.0",
     "@babel/preset-react": "^7.28.5",
     "@babel/runtime": "7",
     "@kaspernj/api-maker": ">= 1.0.2092",