Only run xpack siem cypress in PRs when there are siem changes

[brianseeders]

From the code

/*
  whenChanged('some/path') { yourCode() } can be used to execute pipeline code in PRs only when changes are detected on paths that you specify.
  The specified code blocks will also always be executed during the non-PR jobs for tracked branches.

  You have the option of passing in path prefixes, or regexes. Single or multiple.
  Path specifications are NOT globby, they are only prefixes.
  Specifying multiple will treat them as ORs.

  Example Usages:
    whenChanged('a/path/prefix/') { someCode() }
    whenChanged(startsWith: 'a/path/prefix/') { someCode() } // Same as above
    whenChanged(['prefix1/', 'prefix2/']) { someCode() }
    whenChanged(regex: /\.test\.js$/) { someCode() }
    whenChanged(regex: [/abc/, /xyz/]) { someCode() }
*/

[brianseeders]

I now have a TODO item to re-factor away having to worry about the processNumber argument anywhere, I just don't want to do it as part of this PR

[elasticmachine]

Pinging @elastic/kibana-operations (Team:Operations)

[spalger]

LGTM!

[brianseeders]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: be838de

History

• 💚 Build #35031 succeeded c6d283f
• 💚 Build #35026 succeeded f01c9bb
• 💚 Build #34919 succeeded a463987
• 💔 Build #34723 failed cb515ed
• 💔 Build #34626 failed 194c09b

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream