fix: add missing META-INF/beans.xml to microprofile-config integration

[roguexz]

The microprofile-config integration was missing the beans.xml marker file, which prevented the configuration from being loaded as an alternative bean in Quarkus applications. This file is required for CDI bean discovery.

Fixes #587

[gemini-code-assist]

Note

Gemini is unable to generate a summary for this pull request due to the file types involved not being currently supported.

[kabir]

Thanks @roguexz - while an empty beans.xml is fine, to stay consistent with the other ones would you be able to add content similar to the other ones in the project? e.g:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="https://jakarta.ee/xml/ns/jakartaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee 
                           https://jakarta.ee/xml/ns/jakartaee/beans_4_0.xsd">
</beans>

As this is an SDK that can be run anywhere, we don't know how lenient the target environment will be :-)

[roguexz]

Sure thing. Will do in a few hours when I get back home.

[roguexz]

Done. Updated and rebased the branch.