validate run time limit for all problem instances/tasks

[jp7745]

No pull requests until after 10-Dec deliverables.

ensure all run time limits are set to reasonable values. This values determines if a solver succeeds or fails at solving a problem.

fixing problem instances in place is OK. any other scripts that generate problem instance JSON files should be updated as well.

[jp7745]

@aakunitsa and @jtcantin reminder about this issue:

All of our time_limit_seconds fields for tasks are either 86400 (1 day) or 172800 (2 days). I want to revisit this for all Hamiltonians and determine if this blanket requirement is too tight and should be relaxed for some larger Hamiltonians (e.g., time_limit_seconds = 604800 (1 week)).

The time limit is important because it dictates whether a solver (or resource estimate) passes or fails in terms of "solving" the problem.

You can revisit the Hamiltonians manually or systematically, but either way, please use your subject matter expertise and experience to suggest reasonable time limits that suggest utility.