chore(deps): upgrade jenkins-x-plugins/jx-gitops to version 0.18.1

[jenkins-x-bot]

from: https://github.com/jenkins-x-plugins/jx-gitops.git

---

jenkins-x-plugins/jx-gitops

Changes in version 0.18.1

Bug Fixes

• speed up helmfile report (Mårten Svantesson)

Chores

• simplifying (Mårten Svantesson)
• update comment (Mårten Svantesson)

[jenkins-x-bot]

[jx-info] Hi, we've detected that the pipelines in this repository are using a syntax that will soon be deprecated.
We'll continue to update you through PRs as we progress. Please check #8589 for further information.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 34.62%. Comparing base (cb8f646) to head (1c29d01).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8657   +/-   ##
=======================================
  Coverage   34.62%   34.62%           
=======================================
  Files          11       11           
  Lines        1242     1242           
=======================================
  Hits          430      430           
  Misses        767      767           
  Partials       45       45           

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[jenkins-x-bot]

@jenkins-x-bot: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
lint	1c29d01	link	/test lint

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