[2026-01-06] Bump dependency updates identified by dependabot

[henrybear327]

Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.

This pull request completes this week's etcd dependency updates following our dependency roster and dependency management instructions.

Summary of actions

Bumped

• build(deps): bump go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc from 0.63.0 to 0.64.0 #21087
• build(deps): bump github.com/prometheus/common from 0.67.4 to 0.67.5 #21088

Fully indirect

• None

Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.51%. Comparing base (a438759) to head (0d48346).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

see 25 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #21089      +/-   ##
==========================================
+ Coverage   68.44%   68.51%   +0.06%     
==========================================
  Files         429      429              
  Lines       35281    35281              
==========================================
+ Hits        24149    24172      +23     
+ Misses       9732     9704      -28     
- Partials     1400     1405       +5     

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[henrybear327]

/retest

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahrtr, henrybear327

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