chore: update SECURITY-INSIGHTS with contribution policy details 📜 (#4198)

- Add contribution policy section to SECURITY-INSIGHTS.yml
- Include links to contributing guidelines and code of conduct

Signed-off-by: mingcheng <mingcheng@antgroup.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: mingcheng

SECURITY-INSIGHTS.yml

@@ -11,6 +11,12 @@ project:
   homepage: https://d7y.io/
   repository: https://github.com/dragonflyoss/dragonfly
 
+contribution-policy:
+  accepts-pull-requests: true
+  accepts-automated-pull-requests: true
+  contributing-policy: https://github.com/dragonflyoss/community/blob/master/CONTRIBUTING.md
+  code-of-conduct: https://github.com/dragonflyoss/community/blob/master/CODE_OF_CONDUCT.md
+
 # Security policy for the project.
 security_policy:
   # URL or path to the project's security policy.