Chore(deps): Bump alpine from 3.20.3 to 3.21.0 (#585)

Bumps alpine from 3.20.3 to 3.21.0.

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Dockerfile

@@ -1,7 +1,7 @@
 ########################################
 # prod image
 #######################################
-FROM alpine:3.20.3 AS prod
+FROM alpine:3.21.0 AS prod
 
 ARG GH_CLI_VER=2.44.1