[rhaos-maint] add container_ro_file_t to the podman artifact store

[openshift-cherrypick-robot]

This is an automated cherry-pick of #360

/assign lsm5

Summary by Sourcery

Adds container_ro_file_t to the podman artifact store.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request adds the container_ro_file_t type to the podman artifact store. This change involves modifications to container.fc and container.if to incorporate the new file type.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Added container_ro_file_t type to the podman artifact store.	Added a new file type container_ro_file_t. Modified the policy to include the new file type.	container.fc container.if

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[sourcery-ai]

Hey @openshift-cherrypick-robot - I've reviewed your changes - here's some feedback:

Overall Comments:

• Since this is an automated cherry-pick, double-check that the changes apply cleanly and that there are no unexpected conflicts or regressions.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[lsm5]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lsm5, openshift-cherrypick-robot

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [lsm5]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[openshift-ci]

New changes are detected. LGTM label has been removed.

[rhatdan]

LGTM