fix(deps): update module gitlab.com/gitlab-org/labkit to v1.16.0

This MR contains the following updates:

Package	Type	Update	Change
gitlab.com/gitlab-org/labkit	require	minor	v1.15.0 -> v1.16.0

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Release Notes

gitlab-org/labkit

v1.16.0

Compare Source

Features

• include original address in correlation CIDR checks (ae96001)

Performance Improvements

• run make recipes in parallel during backward compat check (efa9c71)

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