perf: Change StreamingReadRpc::Read interface to take ResponseType

[andrewro-google]

This allows the caller to allocate the ResponseType on an arena and better matches the underlying GRPC interface

TESTED=bazel test //google/... --test_tag_filters=-integration-test,-benchmark,-sample

---

This change is 

[scotthart]

/gcbrun

[andrewro-google]

Fixed the generator and now bazel test //... --test_tag_filters=-integration-test,-benchmark,-sample and bazel build //... passes

[scotthart]

/gcbrun

[andrewro-google]

Fixed clang errors

[andrewro-google]

Friendly ping

[scotthart]

/gcbrun

[codecov]

Codecov Report

❌ Patch coverage is 99.16840% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.99%. Comparing base (ac99ef0) to head (4f37d9a).

Files with missing lines	Patch %	Lines
...cloud/bigtable/internal/default_row_reader_test.cc	98.16%	2 Missing ⚠️
...v1/internal/golden_kitchen_sink_connection_impl.cc	85.71%	1 Missing ⚠️
...loud/internal/resumable_streaming_read_rpc_test.cc	98.36%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15319      +/-   ##
==========================================
+ Coverage   92.97%   92.99%   +0.02%     
==========================================
  Files        2402     2402              
  Lines      217996   218108     +112     
==========================================
+ Hits       202672   202824     +152     
+ Misses      15324    15284      -40     

☔ View full report in Codecov by Sentry.
📢 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.

[scotthart]

/gcbrun

[andrewro-google]

Friendly ping. Seem like the only tests not running need another level of approval