As tech lead, I want trufflehog to catch fake key files

[andrew-jameson]

Description:
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Per this comment we'll need to investigate this issue.

Acceptance Criteria:
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• Trufflehog catches fake RSA files from testing
• Testing Checklist has been run and all tests pass
• README is updated, if necessary

Tasks:
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• Investigate root cause and resolve
• Test trufflehog pipeline job with fake RSA files
• Run Testing Checklist and confirm all tests pass

Notes:
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