[StepSecurity] ci: Harden GitHub Actions

[step-security-bot]

Summary

This pull request is created by StepSecurity at the request of @ondrejmirtes. Please merge the Pull Request to incorporate the requested changes. Please tag @ondrejmirtes on your message if you have any questions related to the PR.

Security Fixes

Least Privileged GitHub Actions Token Permissions

The GITHUB_TOKEN is an automatically generated secret to make authenticated calls to the GitHub API. GitHub recommends setting minimum token permissions for the GITHUB_TOKEN.

• GitHub Security Guide
• The Open Source Security Foundation (OpenSSF) Security Guide

Pinned Dependencies

GitHub Action tags and Docker tags are mutable. This poses a security risk. GitHub's Security Hardening guide recommends pinning actions to full length commit.

• GitHub Security Guide
• The Open Source Security Foundation (OpenSSF) Security Guide

Harden Runner

Harden-Runner is an open-source security agent for the GitHub-hosted runner to prevent software supply chain attacks. It prevents exfiltration of credentials, detects tampering of source code during build, and enables running jobs without sudo access. See how popular open-source projects use Harden-Runner here.

Harden runner usage

You can find link to view insights and policy recommendation in the build log

Please refer to documentation to find more details.

Feedback

For bug reports, feature requests, and general feedback; please email support@stepsecurity.io. To create such PRs, please visit https://app.stepsecurity.io/securerepo.

Signed-off-by: StepSecurity Bot bot@stepsecurity.io

[phpstan-bot]

You've opened the pull request against the latest branch 2.2.x. PHPStan 2.2 is not going to be released for months. If your code is relevant on 2.1.x and you want it to be released sooner, please rebase your pull request and change its target to 2.1.x.