Fix create retry behavior in go, improve tests

[jasongin]

Changes:

• Fix go tunnel create retry logic: retry only on 409 conflicts, rebuild URL on retry, and respect caller‑supplied IDs. Similar to fixes for C# and TS that were previously applied in Fix tunnel creation ID conflict handling #568
• Fix go tunnel partial update: always include the TunnelID and ClusterID properties in the body, since they are required by the service.
• Route go SSH client session port‑forwarding output through the session logger instead of stdout.
• Improve go tests: add retry behavior coverage, update token handling, and gate verbose output/logging for cleaner default test runs.

Other Tasks:

• If you updated the Go SDK did you update the PackageVersion in tunnels.go
• If you updated the TS SDK did you update the dependencies in package.json for connections and management to require a dependency that is > the current published version(Found using npm view @microsoft/dev-tunnels-contracts). This will fix issues where yarn will pull the old version of packages and will cause mismatched dependencies. See example PR