ci: use mariadb 10.6 (#33220)

https://github.com/frappe/frappe/pull/19116

[skip ci]
diff --git a/.github/helper/install.sh b/.github/helper/install.sh
index 2bb950f..2b3d8cb 100644
--- a/.github/helper/install.sh
+++ b/.github/helper/install.sh
@@ -24,15 +24,14 @@
 
 
 if [ "$DB" == "mariadb" ];then
-    mysql --host 127.0.0.1 --port 3306 -u root -e "SET GLOBAL character_set_server = 'utf8mb4'"
-    mysql --host 127.0.0.1 --port 3306 -u root -e "SET GLOBAL collation_server = 'utf8mb4_unicode_ci'"
+    mysql --host 127.0.0.1 --port 3306 -u root -proot -e "SET GLOBAL character_set_server = 'utf8mb4'"
+    mysql --host 127.0.0.1 --port 3306 -u root -proot -e "SET GLOBAL collation_server = 'utf8mb4_unicode_ci'"
 
-    mysql --host 127.0.0.1 --port 3306 -u root -e "CREATE USER 'test_frappe'@'localhost' IDENTIFIED BY 'test_frappe'"
-    mysql --host 127.0.0.1 --port 3306 -u root -e "CREATE DATABASE test_frappe"
-    mysql --host 127.0.0.1 --port 3306 -u root -e "GRANT ALL PRIVILEGES ON \`test_frappe\`.* TO 'test_frappe'@'localhost'"
+    mysql --host 127.0.0.1 --port 3306 -u root -proot -e "CREATE USER 'test_frappe'@'localhost' IDENTIFIED BY 'test_frappe'"
+    mysql --host 127.0.0.1 --port 3306 -u root -proot -e "CREATE DATABASE test_frappe"
+    mysql --host 127.0.0.1 --port 3306 -u root -proot -e "GRANT ALL PRIVILEGES ON \`test_frappe\`.* TO 'test_frappe'@'localhost'"
 
-    mysql --host 127.0.0.1 --port 3306 -u root -e "UPDATE mysql.user SET Password=PASSWORD('travis') WHERE User='root'"
-    mysql --host 127.0.0.1 --port 3306 -u root -e "FLUSH PRIVILEGES"
+    mysql --host 127.0.0.1 --port 3306 -u root -proot -e "FLUSH PRIVILEGES"
 fi
 
 if [ "$DB" == "postgres" ];then
diff --git a/.github/helper/site_config_mariadb.json b/.github/helper/site_config_mariadb.json
index 948ad08..49e7fcf 100644
--- a/.github/helper/site_config_mariadb.json
+++ b/.github/helper/site_config_mariadb.json
@@ -9,7 +9,7 @@
  "mail_password": "test",
  "admin_password": "admin",
  "root_login": "root",
- "root_password": "travis",
+ "root_password": "root",
  "host_name": "http://test_site:8000",
  "install_apps": ["erpnext"],
  "throttle_user_limit": 100
diff --git a/.github/workflows/patch.yml b/.github/workflows/patch.yml
index 9e06254..d5f0052 100644
--- a/.github/workflows/patch.yml
+++ b/.github/workflows/patch.yml
@@ -25,7 +25,7 @@
       mysql:
         image: mariadb:10.3
         env:
-          MYSQL_ALLOW_EMPTY_PASSWORD: YES
+          MARIADB_ROOT_PASSWORD: 'root'
         ports:
           - 3306:3306
         options: --health-cmd="mysqladmin ping" --health-interval=5s --health-timeout=2s --health-retries=3
diff --git a/.github/workflows/server-tests-mariadb.yml b/.github/workflows/server-tests-mariadb.yml
index b40faa7..bbb8a7e 100644
--- a/.github/workflows/server-tests-mariadb.yml
+++ b/.github/workflows/server-tests-mariadb.yml
@@ -45,9 +45,9 @@
 
     services:
       mysql:
-        image: mariadb:10.3
+        image: mariadb:10.6
         env:
-          MYSQL_ALLOW_EMPTY_PASSWORD: YES
+          MARIADB_ROOT_PASSWORD: 'root'
         ports:
           - 3306:3306
         options: --health-cmd="mysqladmin ping" --health-interval=5s --health-timeout=2s --health-retries=3