Add --file-path-attribute option

[ono-max]

One of our new customers would like to use our CLI, but they have an issue when they record XML files. This is because they have file paths as <name> tags. To support this case, I added a new option called --file-path-attribute, which specifies file path attributes in a flexible way.

<?xml version="1.0" encoding="UTF-8"?>
<testsuites name="Test Suite" time="1.234" tests="2" failures="0">
  <testsuite name="Suite 1" timestamp="2025-10-27T01:20:06" tests="2" time="1.234" failures="0">
    <testcase time="0.500" name="tests/test_custom.py">
    </testcase>
    <testcase time="0.734" name="tests/test_custom2.py">
    </testcase>
  </testsuite>
</testsuites>

[ono-max]

@Konboi

It's my first time to modify CLI v2, so can you please review this PR just in case? Thanks!