[BUG] Infinitely Looping .ci/run doc serve command

[johnzl-777]

Describe the bug

Trying to run .ci/run doc serve (with AND without the --light flag) after an initial successful run (which produces /docs/build/ and /docs/src/assets/indigo.css) causes the command to get stuck in an infinite loop where it seems to constantly re-render documentation from the command line output. Attempting to access localhost:8000 during this just produces a broken page or a file directory in the browser.

A temporary workaround is after each time .ci/run doc serve is executed, rm docs/build/ and docs/src/assets/indigo.css so the next run doesn't infinitely cycle.

To Reproduce

1. Start a clean "serve" of the documentation by running .ci/run doc serve
2. Kill the command
3. Run .ci/run doc serve again, with docs/build/ and docs/src/assets/indigo.css left as-is from step 1.