RFR: 7904053: Update version to 8.0

Wed Jul 2 01:59:49 UTC 2025

On Tue, 1 Jul 2025 15:56:23 GMT, Christian Stein <cstein at openjdk.org> wrote:

> Please review this trivial change updating the version to `8.0`; the upcoming release version of jtreg.

Marked as reviewed by jpai (Reviewer).

Hello Christian, the GitHub actions job has a test failure which might need investigation before integrating the change.

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PR Review: https://git.openjdk.org/jtreg/pull/271#pullrequestreview-2977368070
PR Comment: https://git.openjdk.org/jtreg/pull/271#issuecomment-3026087756