Update mime4j to 0.8.12

[gsmet]

Fixes #41272

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit ebe9486.

✅ 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 Tests - JDK 17 Windows

📦 extensions/hibernate-orm/deployment

✖ io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.testFieldAccess - History

• Expecting actual not to be null - java.lang.AssertionError

java.lang.AssertionError: 

Expecting actual not to be null
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest$FieldAccessEnhancedDelegate$1.assertValue(PublicFieldAccessInheritanceTest.java:141)
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.doTestFieldAccess(PublicFieldAccessInheritanceTest.java:100)
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.testFieldAccess(PublicFieldAccessInheritanceTest.java:61)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.QuarkusUnitTest.runExtensionMethod(QuarkusUnitTest.java:513)

• Expecting actual not to be null - java.lang.AssertionError

java.lang.AssertionError: 

Expecting actual not to be null
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest$FieldAccessEnhancedDelegate$1.assertValue(PublicFieldAccessInheritanceTest.java:141)
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.doTestFieldAccess(PublicFieldAccessInheritanceTest.java:100)
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.testFieldAccess(PublicFieldAccessInheritanceTest.java:61)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.QuarkusUnitTest.runExtensionMethod(QuarkusUnitTest.java:513)

• Expecting actual not to be null - java.lang.AssertionError

java.lang.AssertionError: 

Expecting actual not to be null
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest$FieldAccessEnhancedDelegate$1.assertValue(PublicFieldAccessInheritanceTest.java:141)
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.doTestFieldAccess(PublicFieldAccessInheritanceTest.java:100)
	at io.quarkus.hibernate.orm.applicationfieldaccess.PublicFieldAccessInheritanceTest.testFieldAccess(PublicFieldAccessInheritanceTest.java:61)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.QuarkusUnitTest.runExtensionMethod(QuarkusUnitTest.java:513)