[8.7](backport #35221) IIS and MYSQL expected json logfile update

[mergify]

This is an automatic backport of pull request #35221 done by Mergify.
Cherry-pick of f5ace09 has failed:

On branch mergify/bp/8.7/pr-35221
Your branch is up to date with 'origin/8.7'.

You are currently cherry-picking commit f5ace09f10.
  (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:   CHANGELOG.next.asciidoc
	modified:   filebeat/module/iis/access/test/test-iis-7.5.log-expected.json
	modified:   filebeat/module/mysql/slowlog/test/mariadb-10.3.13.log-expected.json
	modified:   filebeat/module/mysql/slowlog/test/percona-ubuntu-8.0.15.log-expected.json
	modified:   testing/environments/snapshot.yml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   filebeat/module/mysql/slowlog/test/mysql-ubuntu-8.0.15.log-expected.json

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

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• Start Time: 2023-05-02T10:41:11.659+0000

• Duration: 78 min 37 sec

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Test	Results
Failed	0
Passed	26010
Skipped	1975
Total	27985

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