chore(deps-dev): bump firebase-tools from 15.5.1 to 15.6.0

[dependabot]

Bumps firebase-tools from 15.5.1 to 15.6.0.

Release notes

Sourced from firebase-tools's releases.

v15.6.0

• Added support for enabling Firebase Authentication providers via firebase deploy. You can configure providers in firebase.json like so:

{
  "auth": {
    "providers": {
      "anonymous": true,
      "emailPassword": true,
      "googleSignIn": {
        "oAuthBrandDisplayName": "My App",
        "supportEmail": "support@myapp.com"
      }
    }
  }
}

• Added initial zip deploy support in functions deploy for HTTP functions (#9707)
• Fixes an issue where Python was missing from the firebase-tools Docker image (#9855).
• Fixes billing information check to use user's project quota (#9879).
• Updated the Firebase Data Connect local toolkit to v3.1.2, which contains the following changes: (#9882)
  • Improved insecure operation warning messages and reduced the severity of existing insecure operation warnings to LOG_ONLY.
  • Updated the Golang dependency version from 1.24.4 to 1.24.12.
• Fixes issue where auth emulator multi-tenant mode exports/imports only users tied to the default tenant (#5623)
• Updated Pub/Sub emulator to version 0.8.27.
• Updated the Data Connect emulator to v3.1.3, which enables the native SQL feature.

Commits

• b7b7eff 15.6.0
• 1be6b05 Update NPM in builder image as well (#9915)
• 6e07a5d More debugging of release script (#9913)
• 50686da Debugging release script (#9912)
• 28e5887 Update dataconnect emulator to version 3.1.3
• 75b688c Adding support for enabling auth providers via firebase deploy (#9694)
• a84faf1 Updating pubsub emulator to 0.8.27, and add an agent skill for the task (#9902)
• 26b7b83 Prompt to delete unreferenced secondary schemas (#9906)
• 3a18ec0 Remove reference of legacy GiF (#9907)
• a153d34 Skip flaky tests (#9904)
• Additional commits viewable in compare view

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