Bumps alpine from 3.21.0 to 3.21.3.

---
updated-dependencies:
- dependency-name: alpine
dependency-type: direct:production
update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

• Commit 0d2c13b
• #93: Bump alpine from 3.21.0 to 3.21.3
• Branch master

dependabot[bot] authored GitHub committed