Enable security cops

[joshcooper]

IO.read is potentially unsafe when called with special characters, which isn't an issue here. Use File.read to avoid any future issues.

Please check off the steps below as you complete each step

• [ ] Put the Jira ticket or Github issue number in parentheses in the Title e.g. (SUP-XXXX) Add Super Duper State Check
• [ ] Update the Jira ticket status to Ready for Review if there is one
• [ ] Review any CI failures and fix issues