build(deps): bump alpine from 3.15.3 to 3.15.4
Bumps alpine from 3.15.3 to 3.15.4.
---
updated-dependencies:
- dependency-name: alpine
dependency-type: direct:production
update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>