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/utils/prometheus/config.tf

@@ -1,6 +1,7 @@
 locals {
   app_version         = var.tag
   prometheus_folder   = "${var.persistent_folder}/prometheus"
+  pushgateway_folder  = "${var.persistent_folder}/pushgateway"
   alertmanager_folder = "${var.persistent_folder}/alertmanager"
 
   prometheus_default_config   = yamldecode(file("${path.module}/resources/prometheus.yml"))