Fix Validation Script to Not Error Out if Bullet Points Don't End with Period
Quite a few PRs lately have worked around the validation script error of descriptions not ending with a period when there are bullet points by adding periods to the end of each bullet point. This looks tacky and is really just a hack to get around the validator failing.

Would rather update the validator to maybe ignore bullet points as part of the description, though @datapythonista may have other thoughts.

xref #20298