Replace MariaDB 10.4 with 10.8 in integration tests.

10.8 is the current short-term support stable release.

Author: bgrainger

azure-pipelines.yml

@@ -228,10 +228,6 @@ jobs:
         image: 'mysql:8.0'
         connectionStringExtra: ''
         unsupportedFeatures: 'Ed25519,StreamingResults,Tls11,ZeroDateTime'
-      'MariaDB 10.4':
-        image: 'mariadb:10.4'
-        connectionStringExtra: ''
-        unsupportedFeatures: 'CachingSha2Password,CancelSleepSuccessfully,Json,RoundDateTime,QueryAttributes,Sha256Password,Tls11,UuidToBin'
       'MariaDB 10.5':
         image: 'mariadb:10.5'
         connectionStringExtra: ''
@@ -240,6 +236,10 @@ jobs:
         image: 'mariadb:10.6'
         connectionStringExtra: ''
         unsupportedFeatures: 'CachingSha2Password,CancelSleepSuccessfully,Json,RoundDateTime,QueryAttributes,Sha256Password,Tls11,UuidToBin'
+      'MariaDB 10.8':
+        image: 'mariadb:10.8'
+        connectionStringExtra: ''
+        unsupportedFeatures: 'CachingSha2Password,CancelSleepSuccessfully,Json,RoundDateTime,QueryAttributes,Sha256Password,Tls11,UuidToBin'
   steps:
   - template: '.ci/integration-tests-steps.yml'
     parameters: