Adds the ability to test the synthetic data tutorial notebooks to ensure there are no errors.

[codecov[bot]]

Codecov Report

Patch coverage has no change and project coverage change: +3.11% :tada:

Comparison is base (10be263) 72.79% compared to head (738f6e4) 75.90%. Report is 5 commits behind head on dev.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #59 +/- ## ========================================== + Coverage 72.79% 75.90% +3.11% ========================================== Files 34 34 Lines 6330 6330 ========================================== + Hits 4608 4805 +197 + Misses 1722 1525 -197 ``` | [Files Changed](https://app.codecov.io/gh/mmcdermott/EventStreamGPT/pull/59?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+McDermott) | Coverage Δ | | |---|---|---| | [EventStream/data/types.py](https://app.codecov.io/gh/mmcdermott/EventStreamGPT/pull/59?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+McDermott#diff-RXZlbnRTdHJlYW0vZGF0YS90eXBlcy5weQ==) | `94.09% <ø> (ø)` | | | [EventStream/transformer/transformer.py](https://app.codecov.io/gh/mmcdermott/EventStreamGPT/pull/59?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+McDermott#diff-RXZlbnRTdHJlYW0vdHJhbnNmb3JtZXIvdHJhbnNmb3JtZXIucHk=) | `83.03% <ø> (ø)` | | ... and [4 files with indirect coverage changes](https://app.codecov.io/gh/mmcdermott/EventStreamGPT/pull/59/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Matthew+McDermott)

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