chore(glob): upgrade glob to v11 in @xarc/app-dev [CEECORE-6820]

[kylejeske]

Summary

Upgrade glob from v9.x to v11.x in @xarc/app-dev package.

Changes:

• Update flatten-messages.js to use glob v11 native Promise API
• Remove promisify wrapper - glob v11 returns Promise directly
• Update package.json dependency from glob ^9.0.0 to ^11.0.0
• Add Node.js 24 support to rush.json nodeSupportedVersionRange

glob v11 Breaking Changes:

• ESM-first package with "type": "module"
• Native Promise-based API (no more callback style)
• glob() returns Promise directly from CJS exports

Test Plan

• @xarc/app-dev builds successfully
• Rush update completed without errors
• CI/CD pipeline passes

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