Avoid sed hack

[jan-cerny]

Instead of modifying the generated XCCDF file by using sed command, we
can directly generate an XCCDF file containing the correct strings from
the beginning. To do that, we need to rename the interim internal build
artifacts (oval-linked.xml and ocil-linked.xml). However, it will help
us streamline our build process in future.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[github-actions]

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

Fedora Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit 2c97113 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 42.3% (0.0% change).

View more on Code Climate.

[jan-cerny]

I have rebased the PR on the top of the latest upstream master branch.

[matejak]

The only disadvantage is that the output of the ssg_build_xccdf_final step overwrites its input. But as the plan is to get rid of XSLTs anyway, it is just a temporal problem, and we already do overwrites in the build system already, so it is not entirely unexpected.
Thank you for the PR!

[matejak]

Test failures are unrealted to the PR, there are just a couple of STIG rules that can't be hardened.