fix: code of conduct broken link (#911)

Co-authored-by: Steven Johnson <[email protected]>

Author: kukkok3

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -98,7 +98,7 @@ body:
     id: terms
     attributes:
       label: Code of Conduct
-      description: By submitting this issue, you agree to follow our [Code of Conduct](https://example.com)
+      description: By submitting this issue, you agree to follow our [Code of Conduct](https://github.com/input-output-hk/catalyst-voices/blob/main/CODE_OF_CONDUCT.md)
       options:
         - label: I agree to follow this project's Code of Conduct
           required: true