CI/CD workflow hardening and API-shipping log clarity

[arturcic]

Summary

Improve CI/CD consistency and API-shipping observability across the workflow and automation changes in this branch.

Scope

• Standardize behavior across affected GitHub Actions workflows and composite actions.
• Improve consistency for checkout/auth/provenance-related pipeline paths.
• Improve API shipping log readability with explicit per-target change count output.

Validation

• Workflow and script changes were validated during branch development.

Issue

Resolves #4880

[Copilot]

Pull request overview

This PR standardizes and hardens CI/CD GitHub Actions workflows while improving the readability/observability of the Public API “mark shipped” automation output.

Changes:

• Update multiple workflows/composite actions for more consistent formatting and standardized checkout/auth/credential patterns.
• Improve mark-shipped.ps1 output to emit an explicit per-target change count and ignore the #nullable enable header line.
• Update artifact/provenance-related composite actions (artifact restore + build provenance attestation) to newer action versions.

Reviewed changes

Copilot reviewed 25 out of 26 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/mark-shipped.ps1	Adds per-target API change count logging and header filtering; adds a post-run “changes detected” log.
.github/workflows/public-api.yml	Switches to gittools/cicd/checkout + gittools/cicd/git-commit-push for the public API shipping workflow.
.github/workflows/mkdocs.yml	Adds workflow_dispatch and switches to gittools/cicd/checkout + gittools/cicd/git-commit-push for docs snippet updates.
.github/workflows/winget.yml	Replaces GitHub App token generation with gittools/cicd/github-creds for komac submissions.
.github/workflows/homebrew.yml	Replaces GitHub App token generation with gittools/cicd/github-creds and targets gittools-bot/homebrew-core.
.github/workflows/gittools-actions.yml	Updates GitHub App credential loading step/action naming and formatting for dispatch automation.
.github/workflows/release.yml	Formatting/consistency updates to steps.
.github/workflows/new-cli.yml	Formatting/consistency updates to triggers and steps.
.github/workflows/format.yml	Formatting/consistency updates to triggers and steps.
.github/workflows/docs.yml	Formatting/consistency updates across jobs/steps.
.github/workflows/codeql-analysis.yml	Formatting/consistency updates to steps and ordering.
.github/workflows/_prepare.yml	Formatting/consistency updates to matrix and steps.
.github/workflows/_build.yml	Formatting/consistency updates to matrix and steps.
.github/workflows/_unit_tests.yml	Formatting/consistency updates to steps.
.github/workflows/_publish.yml	Formatting/consistency updates to steps and env blocks.
.github/workflows/_docker.yml	Formatting/consistency updates to steps and conditions.
.github/workflows/_docker_manifests.yml	Formatting/consistency updates to steps and conditions.
.github/workflows/_artifacts_windows.yml	Formatting/consistency updates to steps.
.github/workflows/_artifacts_linux.yml	Formatting/consistency updates to steps and retry command indentation.
.github/actions/cache-restore/action.yml	Formatting/consistency updates to composite action steps.
.github/actions/artifacts-restore/action.yml	Updates artifact download action version and normalizes step formatting.
.github/actions/artifacts-attest/action.yml	Updates provenance attestation action version and normalizes step formatting.
.github/actions/docker-setup/action.yml	Fixes composite action indentation/formatting.
.github/actions/docker-test/action.yml	Normalizes composite action indentation/formatting.
.github/actions/docker-publish/action.yml	Normalizes composite action indentation/formatting.
.github/actions/docker-manifests/action.yml	Normalizes composite action indentation/formatting.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[mergify]

Thank you @arturcic for your contribution!