NO-ISSUE: Revert the removal of repositories in the pom.xml file

[rodrigonull]

Removing the repositories from the pom.xml file caused errors when building kogito-apps:

02:09:29   @ 
02:09:29  [ERROR] The build could not read 1 project -> [Help 1]
02:09:29  [ERROR]   
02:09:29  [ERROR]   The project org.kie.kogito:kogito-apps:999-SNAPSHOT (/home/jenkins/workspace/KIE/kogito/main/other/kogito-apps.weekly-deploy/incubator-kie-kogito-apps/pom.xml) has 1 error
02:09:29  [ERROR]     Non-resolvable parent POM for org.kie.kogito:kogito-apps:999-SNAPSHOT: The following artifacts could not be resolved: org.kie.kogito:kogito-build-parent:pom:999-SNAPSHOT (absent): Could not find artifact org.kie.kogito:kogito-build-parent:pom:999-SNAPSHOT and 'parent.relativePath' points at no local POM @ line 28, column 11 -> [Help 2]

This PR reverts this change back to avoid having this error.

[jstastny-cz]

I'd say don't revert, just add apache.snapshots into repositories to be able to resolve snapshot parents.
Reverting brings back the need to specify also Central, because Apache public group is there configured also for releases but had worse performance than central.

[jstastny-cz]

E.g. look here:
https://github.com/apache/maven-parent/blob/master/pom.xml#L1001

<repositories>
    <!-- useful to resolve parent pom when it is a SNAPSHOT -->
    <repository>
      <releases>
        <enabled>false</enabled>
      </releases>
      <id>apache.snapshots</id>
      <name>Apache Snapshot Repository</name>
      <url>https://repository.apache.org/snapshots</url>
    </repository>
  </repositories>

[kie-ci3]

PR job #1 was: UNSTABLE
Possible explanation: This should be test failures

Reproducer

build-chain build full_downstream -f 'https://raw.githubusercontent.com/${AUTHOR:apache}/incubator-kie-kogito-pipelines/${BRANCH:main}/.ci/buildchain-config-pr-cdb.yaml' -o 'bc' -p apache/incubator-kie-kogito-apps -u #2055 --skipParallelCheckout

NOTE: To install the build-chain tool, please refer to https://github.com/kiegroup/github-action-build-chain#local-execution

Please look here: https://ci-builds.apache.org/job/KIE/job/kogito/job/main/job/pullrequest_jobs/job/kogito-apps-pr/job/PR-2055/1/display/redirect

Test results:

• PASSED: 1661
• FAILED: 1

Those are the test failures:

org.kie.kogito.jobs.embedded.EmbeddedJobsServiceTest.testJobService

java.util.ConcurrentModificationException
at java.base/java.util.ArrayList.forEach(ArrayList.java:1513)
at org.kie.kogito.jobs.embedded.EmbeddedJobsServiceTest.testJobService(EmbeddedJobsServiceTest.java:99)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at io.quarkus.test.junit.QuarkusTestExtension.runExtensionMethod(QuarkusTestExtension.java:1013)
at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:827)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)