Bump legacy CLI to 4.25.0

[pjcdawkins]

Release notes: https://github.com/platformsh/legacy-cli/releases/v4.25.0

New features:

• Autoscaling-related features:
  • Add an autoscaling command to read autoscaling settings.
  • Mark services with autoscaling in the resources command.
  • Disallow changing the instance count in resources:set when autoscaling is enabled.
• Support the OpenTelemetry Protocol (otlp) integration, when available on the project.
• Add a --strategy (-s) option to the env:deploy command (stopstart or rolling).
• Require confirmation on branch or env:activate commands when guaranteed resources are configured.

Other changes:

• Update embedded docs links to the new permalink structure.
• Avoid writing to stdout when opening a URL.
• Treat upsun and platformsh vendors as equivalent in the project list from 2025-09-23.
• Fix the command recommendation when there are staged activities.
• Fix the Drush site URL when there is no app route (e.g. with Varnish).

platformsh/legacy-cli@v4.24.0...v4.25.0

[akalipetis]

LGTM