Revert "Upgrade mariadb-java-client from 2.7.5 to 3.0.3"

[famod]

This reverts commit 8a174ef.

As discussed here: #23249 (comment)

I'll be monitoring the progress of 3.x and I'll come up with a another PR when things look better.

[Sanne]

Thanks!

[quarkus-bot]

Failing Jobs - Building eb265b0

Status	Name	Step	Failures	Logs	Raw logs
✔️	JVM Tests - JDK 11
✖	JVM Tests - JDK 11 Windows	Build	Failures	Logs	Raw logs
✔️	JVM Tests - JDK 17

Full information is available in the Build summary check run.

Failures

⚙️ JVM Tests - JDK 11 Windows #

- Failing: extensions/smallrye-reactive-messaging-amqp/deployment 
! Skipped: integration-tests/reactive-messaging-amqp 

📦 extensions/smallrye-reactive-messaging-amqp/deployment

✖ io.quarkus.smallrye.reactivemessaging.amqp.AnonymousAmqpTest.test line 30 - More details - Source on GitHub

org.awaitility.core.ConditionTimeoutException: Condition with io.quarkus.smallrye.reactivemessaging.amqp.AnonymousAmqpTest was not fulfilled within 1 minutes.
	at org.awaitility.core.ConditionAwaiter.await(ConditionAwaiter.java:164)
	at org.awaitility.core.CallableCondition.await(CallableCondition.java:78)