Add SLSA provenance to your releases

### Description of the feature request:

Please add [SLSA provenance ](https://slsa.dev/)to your releases.

It is easy to do on on Github:

https://github.com/slsa-framework/slsa-github-generator/blob/main/internal/builders/generic/README.md#provenance-for-goreleaser
https://goreleaser.com/blog/slsa-generation-for-your-artifacts/#slsa-github-generator

Background info:
https://docs.sigstore.dev/signing/overview/

### Which category does this issue belong to?

_No response_

### What underlying problem are you trying to solve with this feature?

Improve robustness against supply-chain attacks.

### Which operating system are you running Bazel on?

_No response_

### What is the output of `bazel info release`?

_No response_

### If `bazel info release` returns `development version` or `(@non-git)`, tell us how you built Bazel.

_No response_

### What's the output of `git remote get-url origin; git rev-parse HEAD` ?

_No response_

### Have you found anything relevant by searching the web?

_No response_

### Any other information, logs, or outputs that you want to share?

_No response_