build(deps): bump alpine from 3.21.3 to 3.22.0

Bumps alpine from 3.21.3 to 3.22.0.

---
updated-dependencies:
- dependency-name: alpine
  dependency-version: 3.22.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Dockerfile

@@ -6,7 +6,7 @@
 #
 # SPDX-License-Identifier: EPL-2.0
 
-FROM docker.io/alpine:3.21.3
+FROM docker.io/alpine:3.22.0
 
 # http://www.postfix.org/announcements.html
 # https://git.alpinelinux.org/aports/log/main/postfix?h=3.21-stable