Add option to stop/cancel the CSPM InProgress and Queued scans

**Additional context**
Currently there is no way to stop the CSPM Scans. Add an API and button in UI to allow user to stop InProgress/Queued scans

**Describe the solution you'd like**
- Add an API
- Add a button is 'Posture'

**Components/Services**

- [x] UI/Frontend
- [x] API/Backend
- [ ] Agent
- [ ] Deployment/YAMLs
- [ ] CI/CD Integration
- [ ] Other (specify)