chore: Bump alpine from 3.18.4 to 3.19.0 in /alpine (#175)

Bumps alpine from 3.18.4 to 3.19.0.

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

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

alpine/Dockerfile.deprecated

@@ -1,4 +1,4 @@
-FROM alpine:3.18.4
+FROM alpine:3.19.0
 
 RUN printf "This image is deprecated and no longer supported. Please switch to ghcr.io/kereis/traefik-certs-dumper.\n\nFor more information, check https://github.com/kereis/traefik-certs-dumper.\n" >> /notice.txt