Avoid 3rd party maven repositories if possible

[davsclaus]

Noticed during build that something is downloaded from

[INFO]
[INFO] --- formatter-maven-plugin:2.8.1:format (default) @ camel-quarkus-build-parent ---
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.resources/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.expressions/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.runtime/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.osgi/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.equinox.common/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.jobs/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.equinox.registry/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.equinox.preferences/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.contenttype/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.equinox.app/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.filesystem/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.text/maven-metadata.xml
Downloading from jboss-public-repository: https://repository.jboss.org/nexus/content/groups/public/org/eclipse/platform/org.eclipse.core.commands/maven-metadata.xml
[INFO] Using 'UTF-8' encoding to format source files.
[INFO] Number of files to be formatted: 0

We should favour using only maven central as much as possible. Not sure why this maven plugin does that above.