component/mariadb: go back to mariadb 10.3.22

We are observing mariadb crashes in ERP5 with 10.4, so revert back to 10.3

Crashes errors are:

    InnoDB: Assertion failure in file .../mariadb-10.4.14/storage/innobase/lock/lock0lock.cc line 6900

in non debug mode and:

    mysqld: .../mariadb-10.4.14/storage/innobase/row/row0sel.cc:4480: dberr_t row_search_mvcc(byte*, page_cur_mode_t, row_prebuilt_t*, ulint, ulint): Assertion `prebuilt->sql_stat_start || trx->state == TRX_STATE_ACTIVE || (prebuilt->table->no_rollback() && trx->state == TRX_STATE_NOT_STARTED)' failed.

in debug mode.

component/mariadb/buildout.cfg

@@ -125,3 +125,34 @@ environment =
   CPPFLAGS=-I${groonga:location}/include/groonga -I${pcre:location}/include
   LDFLAGS=-L${groonga:location}/lib
   PKG_CONFIG_PATH=${groonga:location}/lib/pkgconfig:${groonga-normalizer-mysql:location}/lib/pkgconfig
+
+
+### XXX keep using mariadb 10.3.22 because 10.4 cause crash
+### (we just override here for easier revert)
+[mariadb]
+version = 10.3.22
+url = https://downloads.mariadb.org/f/mariadb-10.3.22/source/mariadb-10.3.22.tar.gz/from/http%3A//ftp.hosteurope.de/mirror/archive.mariadb.org/?serve
+md5sum = f712a5e6fde038d0c9c6d2a2cd88b84e
+pre-configure =
+  set -e '\bSET(PLUGIN_AUTH_PAM YES)' cmake/build_configurations/mysql_release.cmake
+  grep -q "$@"
+  sed -i "/$1/d" "$2"
+post-install =
+  ldd=`ldd ${:location}/lib/plugin/ha_rocksdb.so`
+  for x in ${lz4:location} ${snappy:location} ${zstd:location}
+  do echo "$ldd" |grep -qF " $x/lib/"
+  done
+  mkdir -p ${:location}/include/wsrep &&
+  cp -p wsrep/wsrep_api.h ${:location}/include/wsrep
+
+[mroonga-mariadb]
+pre-configure =
+  rm -rf fake_mariadb_source
+  mkdir -p fake_mariadb_source
+  cd fake_mariadb_source
+  ln -s ${mariadb:location}/wsrep-lib
+  cp -a ${mariadb:location}/include/mysql/server include
+  cp -a include/private sql
+  chmod -R a+w include sql # so that buildout can delete this compile-dir after install
+  mkdir -p ${:plugin-dir}
+### /XXX keep using mariadb 10.3.22 because 10.4 cause crash