## Summary
The intent here is that all actions should be pinned to an immutable SHA
(but that Renovate should annotate each SHA with the corresponding
SemVer version).
See https://github.com/astral-sh/uv/pull/12189
## Test plan
```
npx --yes --package renovate -- renovate-config-validator
npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated rimraf@2.4.5: Rimraf versions prior to v4 are no longer supported
npm warn deprecated boolean@3.2.0: Package no longer supported. Contact Support at https://www.npmjs.com/support for more info.
npm warn deprecated glob@6.0.4: Glob versions prior to v9 are no longer supported
INFO: Validating .github/renovate.json5
INFO: Config validated successfully
```
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