Use jsonschema.Validator.validate for JSON validation

[alyssadai]

When multiple items in a JSON fail schema validation, jsonschema.validate picks and only returns one using some heuristic.

If we care about returning ALL invalid items in a ValidationError, we may want to use something like a Draft7Validator instance instead.

Originally posted by @surchs in #337 (comment)

[github-actions]

We want to keep our issues up to date and active. This issue hasn't seen any activity in the last 75 days.
We have applied the _flag:stale label to indicate that this issue should be reviewed again.
When you review, please reread the spec and then apply one of these three options:

• prioritize: apply the flag:schedule label to suggest moving this issue into the backlog now
• close: if the issue is no longer relevant, explain why (give others a chance to reply) and then close.
• archive: sometimes an issue has important information or ideas but we won't work on it soon. In this case
  apply the someday label to show that this won't be prioritized. The stalebot will ignore issues with this
  label in the future. Use sparingly!

[dikshant182004]

hi @alyssadai is this issue solved or not