Bump alpine from 3.19.0 to 3.19.1 in /pdns-pgsql

Bumps alpine from 3.19.0 to 3.19.1.

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

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

pdns-pgsql/Dockerfile.alpine

@@ -1,4 +1,4 @@
-FROM alpine:3.19.0
+FROM alpine:3.19.1
 
 RUN arch=$([ "$(arch)" = 'aarch64' ] && echo -n 'arm64' || echo -n 'amd64') \
   && apk update \