Update module go.uber.org/atomic to v1.12.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
go.uber.org/atomic	v1.11.0 → v1.12.0

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Release Notes

uber-go/atomic (go.uber.org/atomic)

v1.12.0

Compare Source

Added

• Add MarshalJSON and UnmarshalJSON method to atomic.Pointer[T] type
  allowing users to use pointer with json.
• Add MarshalJSON and UnmarshalJSON methods to atomic.Time so it
  encodes and decodes the wrapped time.Time instead of an empty struct.

Updated

• Bumped https://github.com/stretchr/testify to v1.12.1.

Full Changelog: uber-go/atomic@v1.11.0...v1.12.0

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