Upgrade to Quarkus 3.2.12 - #28894

@ASzc Needed to remove the netty overrides that were introduced in #24608 to align with Quarkus and resolve some ClassDefNotFound. Not sure what was the context behind #24608 but we expect Quarkus to take care of productization.

Should be ok to remove. It was required because RHBQ's BOM at the time had an old netty version lacking a CVE fix

Unreported flaky test detected

If the flaky tests below are affected by the changes, please review and update the changes accordingly. Otherwise, a maintainer should report the flaky tests prior to merging the PR.

org.keycloak.testsuite.ui.account2.WelcomeScreenTest#clickLogoTest

Keycloak CI - Account Console IT (firefox)

java.lang.AssertionError: Expected WelcomeScreen but was Keycloak Account Management (https://localhost:8543/auth/realms/test/account/)
	at org.junit.Assert.fail(Assert.java:89)
	at org.junit.Assert.assertTrue(Assert.java:42)
	at org.keycloak.testsuite.page.AbstractPage.assertCurrent(AbstractPage.java:110)
	at jdk.internal.reflect.GeneratedMethodAccessor106.invoke(Unknown Source)
...

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Unreported flaky test detected

If the flaky tests below are affected by the changes, please review and update the changes accordingly. Otherwise, a maintainer should report the flaky tests prior to merging the PR.

org.keycloak.testsuite.forms.BrowserFlowTest#testAlternativeNonInteractiveExecutorInSubflow

Keycloak CI - Forms IT (firefox)

org.openqa.selenium.TimeoutException: 
Navigation timed out after 10000 ms
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:19:58.91Z'
System info: host: 'fv-az1019-750', ip: '10.1.0.24', os.name: 'Linux', os.arch: 'amd64', os.version: '6.5.0-1018-azure', java.version: '17.0.10'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
...

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This should be now ready, no need to hold it for RHBQ any longer.