package/mariadb: security bump version to 10.11.15

For release notes since 10.11.11:
https://mariadb.com/docs/release-notes/community-server/10.11/10.11.12
https://mariadb.com/docs/release-notes/community-server/10.11/10.11.13
https://mariadb.com/docs/release-notes/community-server/10.11/10.11.14
https://mariadb.com/docs/release-notes/community-server/10.11/10.11.15

Note: the version 10.11.12 is documented as fixing the following CVEs:
https://www.cve.org/CVERecord?id=CVE-2025-30693
https://www.cve.org/CVERecord?id=CVE-2025-30722
https://www.cve.org/CVERecord?id=CVE-2023-52969
https://www.cve.org/CVERecord?id=CVE-2023-52970
https://www.cve.org/CVERecord?id=CVE-2023-52971

Also, since Buildroot commit [1] "package/libxml2: bump version to
2.15.1", MariaDB is failing to build. This new maintenance release
fixes this issue.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/11943845663
https://gitlab.com/buildroot.org/buildroot/-/jobs/12026402485

[1] https://gitlab.com/buildroot.org/buildroot/-/commit/a67cff491a173c88187ce76e0d3cdccdb48371fc

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mariadb/mariadb.hash

@@ -1,5 +1,5 @@
-# From https://downloads.mariadb.org/mariadb/10.11.11
-sha512  d9c154207a9f435ce08d5fbfe31814a739e577c656ef9996cf7e60c2cad8b4c07e2de8d94b6191fefa2b5cbde56437b586f85f144d3b4fcec8533449ed8411ac  mariadb-10.11.11.tar.gz
+# From https://downloads.mariadb.org/mariadb/10.11.15
+sha512  98d1e54954b69cf87a96be7d76f80333f27832a29279e6b0a9615b830e171713222abcb9ec9b9a545c0fc4a0f9f8e3d4774babcabf534a6fa3cb3dfdaed0dedc  mariadb-10.11.15.tar.gz
 
 # Hash for license files
 sha256  ff437f42ea15b42f3d9617e691b9f159f38a0b1b0748e482304857a5026ede90  README.md

package/mariadb/mariadb.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MARIADB_VERSION = 10.11.11
+MARIADB_VERSION = 10.11.15
 MARIADB_SITE = https://downloads.mariadb.org/interstitial/mariadb-$(MARIADB_VERSION)/source
 MARIADB_LICENSE = GPL-2.0 (server), GPL-2.0 with FLOSS exception (GPL client library), LGPL-2.0 (LGPL client library)
 # Tarball no longer contains LGPL license text