RestEasy Jaxb not registered properly anymore

[snowdrop-bot]

Describe the bug
After Upgrading our Application from 1.9.2.Final to 1.10.0.Final which uses Jax-b, REST calls fail because there is no MessageBodyReader present anymore

RESTEASY003145: Unable to find a MessageBodyReader of content-type application/xml and type class xxx.xxx.xxx

The dependecies include

        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-jaxb</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-resteasy-jaxb</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-rest-client-jaxb</artifactId>
        </dependency>

Funny Note:
In Tests that are run without Quarkus, the Jaxb-Providers are still registered and working

Expected behavior
XML should be read with jaxb as before

Actual behavior
(Describe the actual behavior clearly and concisely.)

**Environment (please complete the following information):**
 - Output of `uname -a` or `ver`: Linux 3.10.0-1160.6.1.el7.x86_64 #1 SMP Tue Nov 17 13:59:11 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

 - Output of `java -version`: openjdk 11.0.9 2020-10-20 LTS
 - Quarkus version or git rev: 1.10.0.Final



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https://github.com/quarkusio/quarkus/issues/13453

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$upstream:13453$