fix(release): cosign v4 bundle format#136
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v0.3.0 release run #25779630060 succeeded through the linux builds but
failed at the cosign signing step:
Error: signing dist/checksums.sha256: create bundle file: open : no such file or directory
Root cause: cosign v4 deprecated `--output-signature` and
`--output-certificate` in favor of a single `--bundle` file (DSSE-
style envelope carrying both the cert and the sig). The deprecated
flags were silently ignored when the new bundle format was active,
leaving the output path unset — hence the empty filename in the
error.
Updates `.goreleaser.yml` to emit `<checksum>.cosign.bundle` and
points the verification recipes in README.md and
shared/runbooks/release-go.md at the new `--bundle` flag.
Verification command change:
- Before: --certificate <x>.pem --signature <x>.sig <x>
- After: --bundle <x>.cosign.bundle <x>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
v0.3.0 release run #25779630060 failed at the cosign signing step:
```
Error: signing dist/checksums.sha256: create bundle file: open : no such file or directory
```
Cosign v4 deprecated `--output-signature` and `--output-certificate` in favor of a single `--bundle` file. The deprecated flags were silently ignored under the new bundle format, leaving the output path empty.
Fix
After merge
Retag v0.3.0 at the new HEAD:
```
git push --delete origin v0.3.0
git tag -d v0.3.0
git tag -s v0.3.0 -m 'v0.3.0'
git push origin v0.3.0
```
🤖 Generated with Claude Code