[tests] Only test transcript equivalence (#5)

[chrisbrickhouse]

Tests of alignment and speaker assignment no longer test for equivalence of start and end times or assignment weights because different machines have slightly different results leading to failures. Instead, only the transcriptions themselves are asserted to be equivalent.

Fixes #5

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (0f89a62) 62.92% compared to head (61f5a45) 78.46%. Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #9 +/- ## =========================================== + Coverage 62.92% 78.46% +15.54% =========================================== Files 2 2 Lines 89 130 +41 =========================================== + Hits 56 102 +46 + Misses 33 28 -5 ```

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