Investigate Maven content filtering issue in `SpineBasedProject`

[alexander-yevsyukov]

When adding Maven repositories specific to Spine, we used to have the following method of the SpineBasedProject class :

    private void addSpineRepository(Url repositoryUrl,
                                    Consumer<MavenRepositoryContentDescriptor> contentConfig) {
        project.getRepositories().maven(repo -> {
            repo.setUrl(repositoryUrl.getSpec());
            repo.mavenContent(contentConfig::accept);
            repo.content(descriptor -> descriptor.includeGroupByRegex(SPINE_GROUP_PATTERN));
        });
    }

After recent migration to Gradle 7 and new repositories the content filtering causes artifact lookup to fail. The filtering is configured by this code line:

repo.mavenContent(contentConfig::accept);

This line was recently commented out. It needs to be investigated why the artifact lookup fails if we do apply the Maven content filtering.