mariadb: upgrade 10.11.16 -> 10.11.18

This upgrades the 10.11 LTS recipe to the upstream release containing fixes for:

- CVE-2026-44168
- CVE-2026-44170
- CVE-2026-44171
- CVE-2026-44173
- CVE-2026-48163
- CVE-2026-48165
- CVE-2026-49261

Release notes:
- https://mariadb.com/docs/release-notes/community-server/10.11/10.11.18
- https://mariadb.com/docs/release-notes/community-server/10.11/10.11.17

Signed-off-by: Sudhir Dumbhare <sudumbha@cisco.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>

meta-oe/recipes-dbs/mysql/mariadb.inc

@@ -23,7 +23,7 @@ SRC_URI = "https://archive.mariadb.org/${BP}/source/${BP}.tar.gz \
            file://lfs64.patch \
            file://0001-Add-missing-includes-cstdint-and-cstdio.patch \
           "
-SRC_URI[sha256sum] = "e4f9f2035d38345464ae8abaeaf68380d1ceadbafb4e84744ed2ed5b7aab64e7"
+SRC_URI[sha256sum] = "a46852c68075be7c31c7b33fee233c5b5a00c8c28117f5204d124e4f2fd56fa8"
 
 UPSTREAM_CHECK_URI = "https://github.com/MariaDB/server/releases"