feat: This upgrades the Sentry CLI to v3

[github-actions]

Note

The pull request "feat: This upgrades the Sentry CLI to v3" was created by @JPeer264 but did not reference an issue. Therefore this issue was created for better visibility in external tools like Linear.

This upgrades the Sentry CLI to v3: https://github.com/getsentry/sentry-cli/releases/tag/3.0.0

With that we would only support self-hosted versions 25.11.1 and higher, so this might land in SDK v11.

Merge checks

• Clarify if self-hosted version 25.11.1 would be fine after releasing this

[linear]

JS-1307