e2e action in global-ci.yaml uses Konveyor latest instead of target branch (for PR)

[mguetta1]

For example: https://github.com/konveyor/java-analyzer-bundle/actions/runs/18699410887/job/53324966272?pr=161#step:12:230 (target branch: release-0.8)

[konveyor-ci-bot]

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