package/mariadb: security bump to version 10.11.6

This bump will fix the following build failure raised since bump of fmt
to version 10.1.0 in commit 619b558
thanks to
MariaDB/server@f4cec36:

-- Performing Test HAVE_SYSTEM_LIBFMT
-- Performing Test HAVE_SYSTEM_LIBFMT - Failed

[...]

-- Downloading...
   dst='/home/buildroot/autobuild/instance-3/output-1/build/mariadb-10.11.4/extra/libfmt/src/8.0.1.zip'
   timeout='none'
   inactivity timeout='none'
-- Using src='https://github.com/fmtlib/fmt/archive/refs/tags/8.0.1.zip'
CMake Error at libfmt-stamp/download-libfmt.cmake:170 (message):
  Each download failed!

    error: downloading 'https://github.com/fmtlib/fmt/archive/refs/tags/8.0.1.zip' failed
          status_code: 1
          status_string: "Unsupported protocol"
          log:
          --- LOG BEGIN ---
          Protocol "https" not supported or disabled in libcurl

This bump will also fix CVE-2023-22084

https://mariadb.com/kb/en/mariadb-10-11-5-release-notes/
https://mariadb.com/kb/en/mariadb-10-11-6-release-notes/

Fixes:
 - http://autobuild.buildroot.org/results/9cb577195aa939289102116df5a2eac03f0d5017

Signed-off-by: Fabrice Fontaine <[email protected]>
Signed-off-by: Peter Korsgaard <[email protected]>
(cherry picked from commit d20329e)
Signed-off-by: Peter Korsgaard <[email protected]>

package/mariadb/mariadb.hash

@@ -1,5 +1,5 @@
-# From https://downloads.mariadb.org/mariadb/10.11.4
-sha512  62fc05395857dd036ebeed53b1ff0ecd9abd95ce8e5316194286521caae0f9452cf96a93613adec809e39e1d8ef20c330b24fee82b3bb90ee27a84f2bbd0d8d2  mariadb-10.11.4.tar.gz
+# From https://downloads.mariadb.org/mariadb/10.11.6
+sha512  3d77f7be4a26d5a36af56150a5f8ed5e21adeed9bc8ea1bd694e47a25a571bd73468eada7c96e0dfe5a6c81bef625abf71a56d228cf43a738e555e3c0d824a6a  mariadb-10.11.6.tar.gz
 
 # Hash for license files
 sha256  2b278a3a2f20696113a7c57c4f3e6a5cdb9a25f2a827e72e0c089a2f805ff91a  README.md

package/mariadb/mariadb.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MARIADB_VERSION = 10.11.4
+MARIADB_VERSION = 10.11.6
 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