Bump alpine from 3.14.2 to 3.14.3 (#1046)

Bumps alpine from 3.14.2 to 3.14.3.

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Yoav Rotem <yoavrotems97@gmail.com>