fix link to the test preview

[NoamGaash]

When someone creates a pull request, they get a comment with everything they need.
However, the link to the test preview is broken.
fixing it can help

[ofirc77]

Hi @NoamGaash - I am getting access denied while trying to access the website. In addition, it says "if available" so what is the expected behavior if the test report is not available?

[NoamGaash]

if you'll go to the logs of the "publish tests results" actions, you'll see it prints valid links

[ofirc77]

Is there a way I could have access manually to this bucket for debugging?

[NoamGaash]

the bucket is public, and valid link can be found in the logs - https://github.com/hasadna/open-bus-map-search/actions/runs/13314352244/job/37185552255