[JENKINS-66094]Use Path.startsWith() for subdirectory check when unzipping

[trgpa]

See JENKINS-66094.

Proposed changelog entries

• Fix an issue unzipping archives in a corner case when entries have the same path prefix as the target location.

Submitter checklist

• (If applicable) Jira issue is well described
• Changelog entries and upgrade guidelines are appropriate for the audience affected by the change (users or developer, depending on the change). Examples
  • Fill-in the Proposed changelog entries section only if there are breaking changes or other changes which may require extra steps from users during the upgrade
• Appropriate autotests or explanation to why this change has no tests
• For dependency updates: links to external changelogs and, if possible, full diffs

Desired reviewers

@Wadeck @batmat

[Wadeck]

(Testing still in progress, requires lot of time, but I don't have much 🤷‍♂️)

[Wadeck]

Thank you @trungPa for the PR, I was testing it with tens of different locations and there is no regression, great job!

[basil]

This PR is now ready for merge. We will merge it after approximately 24 hours if there is no negative feedback. Please see the merge process documentation for more information about the merge process. Thanks!

[basil]

@trungPa Could you please update the PR description with an appropriate changelog entry for end users? Something like: "Fix an issue unzipping archives in a corner case when entries have the same path prefix as the target location."