Bump mariadb from 10.6.25 to 10.6.26 in /silta-mariadb/10.6-bc

Bumps mariadb from 10.6.25 to 10.6.26.

---
updated-dependencies:
- dependency-name: mariadb
  dependency-version: 10.6.26
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

silta-mariadb/10.6-bc/Dockerfile

@@ -1,5 +1,5 @@
 # https://hub.docker.com/_/mariadb/tags
-FROM mariadb:10.6.25
+FROM mariadb:10.6.26
 
 # Bitnami commit for script downloads
 ARG BITNAMI_CONTAINERS_COMMIT=0ef447b0dcac9d5ed1142d4900b555a694ec3ddb