Update Security Plan and Security Management Plan

The security plan and security management plan shall be checked:
https://eclipse-score.github.io/score/main/platform_management_plan/index.html
https://eclipse-score.github.io/score/main/platform_management_plan/security_management.html

Consider Safety Management Plan and its work products as guidance

- [ ] Check security plan (PMP, all plans) for security relevant topics and add, if required
- [ ] Check Security Management Plan and adapt it according latest changes in Process Definition and according formal aspects, compare Safety Management Plan

Possible topics to consider, may create more sub-issue, if needed.
General: Add security relevant topics to any plan, if required
SBOM Generation: Tools?, including result of open source scans
Check SCA Tools and apply additional rules for security purposes
Fuzz Testing, etc. enhance Verification Plan, Software Development Plan
Enhance Release Plan, if applicable, etc.