MENT-456 MTR Big test "spider.show_system_tables" is failing on Azure MTR pipeline

Support the dash number of MariaDB versions by Spider's install sequence

storage/spider/spd_init_query.h

@@ -214,6 +214,10 @@ static LEX_STRING spider_init_queries[] = {
     "begin"
     "  select substring_index(substring_index(version(), '-', 2), '-', -1)"
     "    into @server_name;"
+    "  if @server_name regexp '^[0-9]+$' then"
+    "    select substring_index(substring_index(version(), '-', 3), '-', -1)"
+    "      into @server_name;"
+    "  end if;"
     "  select substring_index(version(), '.', 1)"
     "    into @server_major_version;"
     "  select substring_index(substring_index(version(), '.', 2), '.', -1)"