[Issue] improve test AccountTest

[m2-assistant]

This issue is automatically created based on existing pull request: #29693: improve test AccountTest

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Description (*)

Improve test dev/tests/integration/testsuite/Magento/Customer/Controller/AccountTest
Now assert is based on XPath selector instead of assertStringContainsString

Related Pull Requests

Fixed Issues (if relevant)

1. Fixes magento/magento2#<issue_number>

Manual testing scenarios (*)

1. ...
2. ...

Questions or comments

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

[magento-engcom-team]

Hi @m2-assistant[bot]. Thank you for your report.
The issue has been fixed in #29693 by @engcom-Charlie in 2.4-develop branch
Related commit(s):

• af54db3b44a9e55b0665898e8d582302039e5838

The fix will be available with the upcoming 2.4.2 release.