Bundle dependency requirements with release

[camposandro]

This pull request updates the publish-to-pypi.yml workflow, which runs on each package release, to include a file with the list of installed requirements at the time of publishing. Also, according to the following https://github.com/astronomy-commons/hipscat-import/issues/362#issuecomment-2278864308, I added an extra verification step to the pipeline, running the unit tests prior to packaging. Closes #362.

• [X] My PR includes a link to the issue that I am addressing

Usage details

The requirements file helps recreate environments with consistent transitive dependencies, and make deployments on Dask Kubernetes clusters reproducible. When installing hipscat-import on a Docker image one should:

$ pip download hipscat-import --no-deps --no-binary :all: # download the sdist
$ tar -xzf hipscat-import* # unzip it
$ cd hipscat-import*/
$ pip install -r requirements.txt # install the locked dependencies

Code Quality

• [X] I have read the Contribution Guide and LINCC Frameworks Code of Conduct
• [X] My code follows the code style of this project
• [X] My code builds (or compiles) cleanly without any errors or warnings
• [X] My code contains relevant comments and necessary documentation

[codecov[bot]]

Codecov Report

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

Project coverage is 99.73%. Comparing base (d87041a) to head (755a3e9). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #381 +/- ## ======================================= Coverage 99.73% 99.73% ======================================= Files 26 26 Lines 1496 1496 ======================================= Hits 1492 1492 Misses 4 4 ```

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