Bump simple-git from 3.28.0 to 3.30.0 in /js

Bumps [simple-git](https://github.com/steveukx/git-js/tree/HEAD/simple-git) from 3.28.0 to 3.30.0.
- [Release notes](https://github.com/steveukx/git-js/releases)
- [Changelog](https://github.com/steveukx/git-js/blob/main/simple-git/CHANGELOG.md)
- [Commits](https://github.com/steveukx/git-js/commits/[email protected]/simple-git)

---
updated-dependencies:
- dependency-name: simple-git
  dependency-version: 3.30.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

js/apps/create-keycloak-theme/package.json

@@ -18,6 +18,6 @@
     "commander": "^14.0.0",
     "fs-extra": "^11.3.0",
     "mustache": "^4.2.0",
-    "simple-git": "^3.28.0"
+    "simple-git": "^3.30.0"
   }
 }