feat(trivy): Enhance Trivy report generation and metrics handling

- Updated `generate_report.sh` to include additional scanners and output paths.
- Enhanced `send_report.py` with new data classes for misconfigurations and vulnerabilities.
- Improved parsing logic for Trivy output, supporting both Kubernetes and image scans.
- Added Prometheus metrics generation for various scan results, including misconfigurations and vulnerabilities.
- Introduced unit tests for parsing Trivy output and generating Prometheus metrics.
- Modified Terraform variables for SMTP port type and added Pushgateway URL variable.

terraform/modules/apps/grafana/config.tf

@@ -1,4 +1,8 @@
 locals {
   app_version       = var.tag
   monitoring_folder = "${var.persistent_folder}/grafana"
+
+  grafana_datasource_config  = file("${path.module}/resources/default.yml")
+  grafana_dashboard_provider = file("${path.module}/resources/dashboard-provider.yml")
+  grafana_trivy_dashboard    = file("${path.module}/resources/trivy-vulnerabilities-dashboard.json")
 }