Add test matrix

[jeswan]

This PR adds a test matrix using the simple API. The goal of this test matrix is to test for regression across different tasks and models by:

1. Checking that these models can successfully run
2. Check that the performance of the models is the same when using the same seed, deterministic algorithms, and the same number of steps

[codecov]

Codecov Report

Merging #1308 (5905885) into master (ee65662) will not change coverage.
The diff coverage is n/a.

❗ Current head 5905885 differs from pull request most recent head e976d03. Consider uploading reports for the commit e976d03 to get more accurate results

@@           Coverage Diff           @@
##           master    #1308   +/-   ##
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  Coverage   48.46%   48.46%           
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  Files         163      163           
  Lines       11220    11220           
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  Hits         5438     5438           
  Misses       5782     5782           

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