Add pg_dump 15 *and* 16

The fallback to 12 is no longer good enough

Dockerfile

@@ -16,7 +16,7 @@ RUN addgroup -g 4200 appgroup \
 # upgrade all installed packages to fix potential CVEs in advance
 # also remove apk package manager to hopefully remove dependency on OpenSSL 🤞
 RUN apk upgrade --no-cache --no-progress \
-  && apk add --no-cache --no-progress postgresql16-client curl jq \
+  && apk add --no-cache --no-progress postgresql15-client postgresql16-client curl jq \
   && apk add --no-cache --no-progress --repository=https://dl-cdn.alpinelinux.org/alpine/v3.18/community postgresql12-client \
   && apk del --no-cache --no-progress apk-tools alpine-keys
 

Makefile.maker.yaml

@@ -15,6 +15,7 @@ dockerfile:
     - "ENV ENV=/usr/bin/motd.sh"  # `kubectl exec` is not a login shell, so we need to use this instead of /etc/profile or $HOME/.profile
   extraPackages:
     # for psql, pg_dump
+    - postgresql15-client
     - postgresql16-client
     # required for backup-tools.sh
     - curl