Remove customNPMRegistry override from pre-release pipeline

[Copilot]

This updates pipeline configuration to remove a repository-level customNPMRegistry override so the shared pre-release template defaults are used. Scope is intentionally limited to pipeline YAML only.

• Pipeline configuration cleanup

  • Removed the explicit registry override from build/pre-release.yml under extends.parameters.
  • No other pipeline parameters or build steps were changed.

• Resulting config shape

  extends:
    template: azure-pipelines/extension/pre-release.yml@templates
    parameters:
      l10nSourcePaths: ./src
      buildSteps:
        - script: npm ci

Original prompt

Remove customNpmRegistry overrides in pipeline files. Create a PR.

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