enhancement(observability)!: Expand internal histogram precision

[bruceg]

Summary

With the introduction of internal timing measurements in seconds as histograms, the lower bound of 2^-6 (~15ms) in the internal histogram storage is no longer precise enough to properly capture the required measurements. This change extends the smallest bucket down to 2^-12 (~244us), which is the inverse of the largest bucket of 2^12 (4096).

Vector configuration

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Change Type

• Bug fix
• New feature
• Non-functional (chore, refactoring, docs)
• Performance
• Enhancement

Is this a breaking change?

• Yes
• No

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the no-changelog label to this PR.

References

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