Improve handling of broken accept headers in MediaTypeHeaderDelegate

[thomasdarimont]

Previously, a "broken" MIME-type in an access header could trigger an StringIndexOutOfBoundsException during MediaTypeHeaderDelegate.parse(..) instead of the more suitable IllegalArgumentException.

Example: "Accept: x; /x"

This PR now throws an IllegalArgumentException in case of a broken MIME-type like in the example.

Fixes #36159

[quarkus-bot]

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[geoand]

Makes sense, thanks a lot!

[quarkus-bot]

Failing Jobs - Building 84d6c5d

Status	Name	Step	Failures	Logs	Raw logs	Build scan
✔️	Gradle Tests - JDK 11
✖	Gradle Tests - JDK 11 Windows	Build	Failures	Logs	Raw logs

Full information is available in the Build summary check run.

Failures

⚙️ Gradle Tests - JDK 11 Windows #

- Failing: integration-tests/gradle 

📦 integration-tests/gradle

✖ io.quarkus.gradle.builder.QuarkusModelBuilderTest.shouldLoadMultiModuleTestModel line 66 - More details - Source on GitHub

org.gradle.tooling.BuildException: Could not run build action using connection to Gradle distribution 'https://services.gradle.org/distributions/gradle-8.3-bin.zip'.
	at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:51)
	at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:29)

✖ io.quarkus.gradle.builder.QuarkusModelBuilderTest.shouldLoadMultiModuleDevModel line 100 - More details - Source on GitHub

org.gradle.tooling.BuildException: Could not run build action using connection to Gradle distribution 'https://services.gradle.org/distributions/gradle-8.3-bin.zip'.
	at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:51)
	at org.gradle.tooling.internal.consumer.ExceptionTransformer.transform(ExceptionTransformer.java:29)