chore(deps): bump alpine from 3.18.2 to 3.18.3 in /dockerfiles (#1732)

Bumps alpine from 3.18.2 to 3.18.3.

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

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

dockerfiles/Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM alpine:3.18.2 as alpine
+FROM --platform=$BUILDPLATFORM alpine:3.18.3 as alpine
 
 RUN apk add --no-cache \
     ca-certificates \