Override timeout for ImportFileRecords job

[aaronschachter]

What's this PR do?

This pull request sets our ImportFileRecords timeout to 12 minutes, in hopes that we can make it through a full Mute Permutations CSV. I mistakenly added this to the wrong job in #203

How should this be reviewed?

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Any background context you want to provide?

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Relevant tickets

References Pivotal #176771195.

Checklist

• [x] This PR has been added to the relevant Pivotal card.
• [ ] Documentation added for new features/changed endpoints.
• [ ] Added appropriate feature/unit tests.