chore(deps): update docker images

[red-hat-konflux]

This PR contains the following updates:

Package	Type	Update	Change
alpine	final	digest	8a1f59f -> 4bcff63
mysql	final	digest	072f96c -> 297f5ea
postgres	final	digest	6cf6142 -> 3962158
registry.access.redhat.com/ubi9/ubi-minimal	final	digest	f172b30 -> 6d5a657
registry.redhat.io/rhel9/mariadb-105	final	digest	c0e45a7 -> abd1a66
registry.redhat.io/rhel9/redis-6	final	digest	148554a -> f858b46
ubuntu	final	digest	b59d215 -> a328b84

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[sourcery-ai]

Reviewer's Guide

This PR updates the UBI9 minimal Docker base image digest to e12131d in all service Dockerfiles, ensuring builds use the latest patched image.

File-Level Changes

Change	Details	Files
Bumped UBI9 minimal Docker image digest	Updated the registry.access.redhat.com/ubi9/ubi-minimal digest to e12131d in each Dockerfile	Dockerfile.createtree.rh Dockerfile.logserver.rh Dockerfile.logsigner.rh Dockerfile.netcat.rh Dockerfile.updatetree.rh

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