Update module github.com/stretchr/testify to v1.8.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/stretchr/testify	require	patch	v1.8.3 -> v1.8.4

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Release Notes

stretchr/testify

### [`v1.8.4`](https://togithub.com/stretchr/testify/compare/v1.8.3...v1.8.4) [Compare Source](https://togithub.com/stretchr/testify/compare/v1.8.3...v1.8.4)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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This PR has been generated by Mend Renovate. View repository job log here.

[codecov[bot]]

Codecov Report

Merging #408 (8e8233f) into main (9cc9d89) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #408   +/-   ##
=======================================
  Coverage   60.03%   60.03%           
=======================================
  Files          10       10           
  Lines         598      598           
=======================================
  Hits          359      359           
  Misses        169      169           
  Partials       70       70           

Flag	Coverage Δ
integrationtests	38.29% <ø> (ø)
unittests	27.42% <ø> (ø)

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