Investigate Unit Test Coverage Report not updating properly

[ataker]

User Story

It's been reported that applications Unit Test Coverage Report isn't updating as expected. When checking locally application survivor-dependent-education-benefit/22-5490 doesn't have anything below a 70%:

but in the Unit Test Coverage Report they are low 20%.

In my testing, the unit-test-coverage artifacts appear to be correct (see files in unit-test-coverages.zip), but once they are merged in CI they aren't correct (see downloaded_merged_coverage_report.txt). When running the unit-test-coverage artifacts through the node script script/github-actions/merge-unit-test-coverage.js locally the reports come out as I would expect (see local-merged-coverage-report.json). It seems like CI is using the incorrect files when merging the unit test coverage reports together.

local-merged-coverage-report.json
unit-test-coverages.zip
downloaded_merged_coverage_report.txt