update assignees (#309)

Author: dustin-decker

.github/ISSUE_TEMPLATE/bug_report.md

@@ -3,7 +3,7 @@ name: Bug report
 about: Create a report to help us improve
 title: ""
 labels: bug, needs triage
-assignees: dustin-decker, bill-rich
+assignees: trufflesecurity/product-eng
 ---
 
 **Describe the bug**

.github/ISSUE_TEMPLATE/feature_request.md

@@ -3,7 +3,7 @@ name: Feature request
 about: Suggest an idea for this project
 title: ""
 labels: enhancement, needs triage
-assignees: dustin-decker, bill-rich
+assignees: trufflesecurity/product-eng
 ---
 
 **Is your feature request related to a problem? Please describe.**