chore: release v1.16.1

[fengmk2]

Bump the version to v1.16.1 in package.json, the README examples, and the setup-ref / setupRef defaults in the GitLab and Azure templates.

Changes since v1.16.0:

• fix: stop defaulting setup-ref/setupRef to the frozen v1 tag (fix: stop defaulting setup-ref/setupRef to the frozen v1 tag #117)
• docs: use exact version tags instead of the moving v1 tag (docs: use exact version tags instead of the moving v1 tag #116)

After merge, tag the merge commit as v1.16.1 and push the tag.

[Copilot]

Pull request overview

Updates the repository to the v1.16.1 release by bumping version references across the action’s docs and the shipped GitLab/Azure templates so default pinned refs align with the new release.

Changes:

• Bump package.json version to 1.16.1.
• Update README usage examples and template pinning guidance from v1.16.0 to v1.16.1.
• Update GitLab setup-ref and Azure setupRef template defaults (and the Azure template test) to v1.16.1.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package.json	Bumps package version to 1.16.1 to track the latest release tag.
README.md	Updates documentation examples and release instructions to reference v1.16.1.
gitlab/setup-vp.yml	Updates setup-ref default and env fallback to v1.16.1 so unpinned includes get the latest runtime.
azure/setup-vp.yml	Updates setupRef default to v1.16.1 for Azure template consumers.
src/azure/template.test.ts	Updates the assertion to match the Azure template’s new setupRef default.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.