Update all deps

[dashpole]

This should help speed up the process of getting renovate up-to-date, and includes updates that require fixture updates.

This also removes tooling for pinning opentelemetry dependencies.

[dashpole]

The toolchain directive seems to cause GAE tests to fail (probably because it doesn't have the right version of the Go toolchain). I've removed it following open-telemetry/opentelemetry-go#5660

[dashpole]

We should not submit this until we update to the next grpc release

[dashpole]

The next grpc release is here, but it looks like the minimum version update has already propagated across the ecosystem. I think we should move forward with increasing the minimum version to 1.22.7

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.60%. Comparing base (4caace7) to head (c57ff2a).
Report is 78 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #945      +/-   ##
==========================================
+ Coverage   61.03%   63.60%   +2.56%     
==========================================
  Files          56       57       +1     
  Lines        5903     6067     +164     
==========================================
+ Hits         3603     3859     +256     
+ Misses       2143     2046      -97     
- Partials      157      162       +5     

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