chore(stoneintg-942): update readme with new test info

[jencull]

Description

Please include a summary of the changes and the related issue. Please also include relevant motivation and context. List any dependencies that are required for this change.

Issue ticket number and link

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added meaningful description with JIRA/GitHub issue key(if applicable), for example HASSuiteDescribe("STONE-123456789 devfile source")
• I have updated labels (if needed)

[openshift-ci]

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[konflux-ci-qe-bot]

@jencull: The following test has Failed, say /retest to rerun failed tests.

PipelineRun Name	Status	Rerun command	Build Log	Test Log
konflux-e2e-m4cmz-ktwf8	Failed	/retest	View Pipeline Log	View Test Logs

Inspecting Test Artifacts

To inspect your test artifacts, follow these steps:

1. Install ORAS (see the ORAS installation guide).
2. Download artifacts with the following commands:

mkdir -p oras-artifacts
cd oras-artifacts
oras pull quay.io/konflux-test-storage/konflux-team/e2e-tests:konflux-e2e-m4cmz-ktwf8