build(deps-dev): bump @babel/core in /apps/OpenSign

Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.25.8 to 7.26.0.
- [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/v7.26.0/packages/babel-core)

---
updated-dependencies:
- dependency-name: "@babel/core"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

apps/OpenSign/package-lock.json

@@ -95,7 +95,7 @@
     }
   },
   "devDependencies": {
-    "@babel/core": "^7.25.8",
+    "@babel/core": "^7.26.0",
     "@babel/preset-env": "^7.26.0",
     "@babel/preset-react": "^7.25.9",
     "@babel/runtime-corejs2": "^7.25.7",