SDEV-4431 - bugfix - content.spec.json not in distribution

[codecov-commenter]

Codecov Report

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

Project coverage is 86.23%. Comparing base (5c91c79) to head (67d9830).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #27 +/- ## ======================================== Coverage 86.23% 86.23% ======================================== Files 18 18 Lines 2157 2157 ======================================== Hits 1860 1860 Misses 297 297 ``` | [Flag](https://app.codecov.io/gh/bcgsc/pori_python/pull/27/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgsc) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/bcgsc/pori_python/pull/27/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgsc) | `86.23% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bcgsc#carryforward-flags-in-the-pull-request-comment) to find out more.

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