Harden GitHub action workflows #237
Merged
+119
−46
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We use SHAs instead of tag names to refer to action versions. Dependabot will help us manage the SHAs.
Update permissions to minimum necessary.
Add harden-runner to monitor egress of action. After some time, we can tighten the egress to limit hosts/ports.
We also update the maintainers script to generate markdown which passes markdownlint checking.