chore: initialise timeout factor next to the declaration (backport #1118)

[mergify]

This is an automatic backport of pull request #1118 done by Mergify.
Cherry-pick of 15a2a3d has failed:

On branch mergify/bp/7.x/pr-1118
Your branch is up to date with 'origin/7.x'.

You are currently cherry-picking commit 15a2a3d7.
  (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:   e2e/_suites/fleet/ingest_manager_test.go
	modified:   e2e/_suites/helm/helm_charts_test.go
	modified:   internal/common/retry.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   e2e/_suites/kubernetes-autodiscover/autodiscover_test.go

To fix up this pull request, you can check it out locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

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