Quarkus Rest Client not inject ConfigProperty in implementation of ClientHeadersFactory

Describe the bug I'm using MP Rest Client to call another Rest Service from my service implementation and want to overwrite some header attributes by using @ClientsHeadersFactory, but when I using @Inject to use another CDI Beans then a NullpointerException is raised. With Micro Profile Rest Client 1.4 there is the possibility to use '@Inject' if your implementation is managed by CDI. This allows you to inject secrets for example or any other CDI bean to calculate a header value.

Expected behavior injected ConfigProperty is available and not null

Actual behavior NullpointerException is occur in update method of implementation of ClientHeadersFactory.

To Reproduce Steps to reproduce the behavior:

1. Create a implementation class of ClientHeadersFactory and override update method

@ApplicationScoped
public class MyClientHeadersFactory implements ClientHeadersFactory {

  
    @Inject
    @ConfigProperty(name = "secrets.value")
    private String secretValue;

    @Override
    public MultivaluedMap<String, String> update(MultivaluedMap<String, String> incomingHeaders, MultivaluedMap<String, String> clientOutgoingHeaders) {

        System.out.println("--- Incoming headers of the JAX-RS environment");
        incomingHeaders.forEach((k, v) -> System.out.println(k + ":" + v));

        System.out.println("--- Specified outgoing headers of the Rest Client");
        clientOutgoingHeaders.forEach((k, v) -> System.out.println(k + ":" + v));

       
        MultivaluedMap<String, String> resultHeader = new MultivaluedHashMap();
        resultHeader.putAll(incomingHeaders);
        resultHeader.putAll(clientOutgoingHeaders);
        
        //here is the NullpointerException raised
        resultHeader.add("X-Secret-Header", secretValue);

        System.out.println("--- Header of the Rest Client after merging");
        resultHeader.forEach((k, v) -> System.out.println(k + ":" + v));

        return resultHeader;
    }

}

2. Register your implemented ClientHeadersFactory in your Rest Client interface by using @RegisterClientHeaders()

@RegisterRestClient(configKey = "remote-restservice")
@RegisterClientHeaders(MyClientHeadersFactory.class)
public interface RemoteRestService
{

    @POST
    @Path("/doSomeStuff")
    @Consumes({ "application/json" })
    @Produces({ "application/json" })
    Response createStuff( @Valid Stuff stuff);
}

Configuration

# Add your application.properties here, if applicable.
remote-restservice/mp-rest/url=http://localhost:9090/service
secrets.value=test

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Environment (please complete the following information):

• Output of uname -a or ver:
• Output of java -version:
• GraalVM version (if different from Java):
• Quarkus version or git rev: 1.5.2-FINAL
• Build tool (ie. output of mvnw --version or gradlew --version):

Additional context (Add any other context about the problem here.)