[8.x](backport #6122) build(deps): bump github.com/elastic/mito from 1.15.0 to 1.16.0

[mergify]

Bumps github.com/elastic/mito from 1.15.0 to 1.16.0.

Commits

• d4ba837 lib: add support for execution coverage reporting
• 3b51316 lib: add diadic min and max functions
• 19cb8af lib: add sprintf helper function
• b3efc2e do POST tests locally
• 6e7513d lib: add evaluation state dump utility type
• See full diff in compare view

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This is an automatic backport of pull request #6122 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 5401628 has failed:

On branch mergify/bp/8.x/pr-6122
Your branch is up to date with 'origin/8.x'.

You are currently cherry-picking commit 54016282ad.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   NOTICE.txt
	modified:   go.mod

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go.sum

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/8.x/pr-6122 upstream/mergify/bp/8.x/pr-6122
git merge upstream/8.x
git push upstream mergify/bp/8.x/pr-6122

[jlind23]

outdated, closing.