Drop arm64v8/mysql as docker.io/mysql supports ARM

[rsvoboda]

Drop arm64v8/mysql as docker.io/mysql supports ARM

See https://hub.docker.com/_/mysql/tags?name=8.4

Asking @holly-cummins for review as she did the mac-m1 profile

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 7e1602b.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

---

Flaky tests - Develocity

⚙️ JVM Integration Tests - JDK 21

📦 integration-tests/opentelemetry-grpc-only

✖ io.quarkus.it.opentelemetry.grpc.HelloGrpcClientTest.testHello - History

• java.lang.RuntimeException: Failed to start quarkus - java.lang.RuntimeException

java.lang.RuntimeException: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.test.junit.QuarkusTestExtension.throwBootFailureException(QuarkusTestExtension.java:668)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestClassConstructor(QuarkusTestExtension.java:763)
	at java.base/java.util.Optional.orElseGet(Optional.java:364)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
Caused by: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.doStart(Unknown Source)

• java.lang.RuntimeException: Failed to start quarkus - java.lang.RuntimeException

java.lang.RuntimeException: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.test.junit.QuarkusTestExtension.throwBootFailureException(QuarkusTestExtension.java:668)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestClassConstructor(QuarkusTestExtension.java:763)
	at java.base/java.util.Optional.orElseGet(Optional.java:364)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
Caused by: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.doStart(Unknown Source)

[holly-cummins]

Isn't it lovely when "temporary" code actually goes away?