feat(attestation): Make attestation view URL clickable in CI/CD reports

[migmartri]

Summary

• changed dashboard URL, closes Include attestation link on attestation status once attestation is pushed #2669
• Updated GitHub Actions and GitLab CI attestation reports to include clickable markdown links to attestation details
• The attestation view URL is now rendered as a markdown link after the status table in CI/CD platform reports
• Modified the Report() method signature across all runner implementations to accept the attestation view URL parameter

[javirln]

This and the one in GitLab will basically print twice the URL, once inside the table with the attestation status and then after the table was rendered as markdown, is that expected?

[migmartri]

I think so, I don't want to mess with the ascii table, I looked into changing the content inside but it will mess with its formatting, the solution in reality is to translate the whole table into markdown