remove stray quotation marks in `question_full.jsonll`

[cfiken]

Why are these changes needed?

There is a stray quotation mark in JSON format in question_full.jsonl so that one raises error on json.load()

Related issue number (if applicable)

none

Checks

• [ ] I've run format.sh to lint the changes in this PR.
• [x] I've included any doc changes needed.
• [x] I've made sure the relevant tests are passing (if applicable).

[kaisugi]

@polm-stability @leemengtw Could you review this PR? 🙏

[polm-stability]

Sorry for never replying to this! Not sure how I missed either the initial issue with the quote or this PR. It looks like a good fix to me :+1: