fix sub-second precision metric reporting

[dprotaso]

Fixes: #16356

[dprotaso]

/cherry-pick release-1.20
/cherry-pick release-1.19

[knative-prow-robot]

@dprotaso: once the present PR merges, I will cherry-pick it on top of release-1.19, release-1.20 in new PRs and assign them to you.

Details

In response to this:

/cherry-pick release-1.20
/cherry-pick release-1.19

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dprotaso

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• OWNERS [dprotaso]

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[linkvt]

/lgtm

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.19%. Comparing base (2d3f345) to head (693b12c).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #16358      +/-   ##
==========================================
- Coverage   80.23%   80.19%   -0.05%     
==========================================
  Files         216      216              
  Lines       13440    13440              
==========================================
- Hits        10784    10778       -6     
- Misses       2293     2296       +3     
- Partials      363      366       +3     

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[knative-prow-robot]

@dprotaso: new pull request created: #16359

Details

In response to this:

/cherry-pick release-1.20
/cherry-pick release-1.19

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[knative-prow-robot]

@dprotaso: new pull request created: #16360

Details

In response to this:

/cherry-pick release-1.20
/cherry-pick release-1.19

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.