Bump react from 19.2.5 to 19.2.6 in /src/vscode-bicep

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 19.2.5 to 19.2.6.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.2.6/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.2.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/vscode-bicep/package-lock.json

@@ -858,7 +858,7 @@
     "cytoscape": "^3.33.3",
     "cytoscape-elk": "^2.3.0",
     "fs-extra": "^11.3.5",
-    "react": "^19.2.4",
+    "react": "^19.2.6",
     "react-dom": "^19.2.5",
     "react-icons": "^5.5.0",
     "styled-components": "^6.4.1",