update links and unify documentation in kickstart files

[vojtapolasek]

Description:

• unify documentation and updater links in kickstart files for rhel8 and rhel9 products

Rationale:

• https://issues.redhat.com/browse/RHEL-30735

Review Hints:

• review changes and especially validate that URLs are correct

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[github-actions]

🤖 A k8s content image for this PR is available at:
ghcr.io/complianceascode/k8scontent:11765
This image was built from commit: 1b800ec

Click here to see how to deploy it

If you alread have Compliance Operator deployed:
utils/build_ds_container.py -i ghcr.io/complianceascode/k8scontent:11765

Otherwise deploy the content and operator together by checking out ComplianceAsCode/compliance-operator and:
CONTENT_IMAGE=ghcr.io/complianceascode/k8scontent:11765 make deploy-local

[Mab879]

@vojtapolasek can you plase rebase this PR, that should fix the Testing Farm errors.

[vojtapolasek]

@Mab879 done.

[codeclimate]

Code Climate has analyzed commit 1b800ec and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 59.3% (0.0% change).

View more on Code Climate.

[Mab879]

LGTM