assertEquals() in phpunit 9.5 no longer takes a delta parameter
and has assertEqualsWithDelta() as a replacement. This means
float get compared without a delta atm, and a recent phpunit
release (9.5.25) has made float comparisons stricter resulting in
test suite errors such as:
1) SubtaskTimeTrackingModelTest::testCalculateSubtaskTime
Total spent
Failed asserting that 3.3000000000000003 matches expected 3.3.
tests/units/Model/SubtaskTimeTrackingModelTest.php:186
This replaces all assertEquals() calls that pass a delta value
with assertEqualsWithDelta().
