fix(storage): URL template in open_object

[coryan]

Fixes #6673

[gemini-code-assist]

Code Review

This pull request updates the URL template for the BidiStreamingRead RPC method in src/storage/src/storage/transport.rs from "/upload/storage/v1/b/{bucket}/o" to "/storage/v1/b/{bucket}/o/{object}". It also adds a new integration test open_object_url_template to verify that the telemetry attributes and client request spans are correctly recorded. There are no review comments, and I have no feedback to provide.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.67%. Comparing base (86c2a65) to head (ce57a86).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6724   +/-   ##
=======================================
  Coverage   96.66%   96.67%           
=======================================
  Files         308      308           
  Lines       97778    97778           
=======================================
+ Hits        94519    94527    +8     
+ Misses       3259     3251    -8     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.