feat: add default matchers option to image scanning

hey! added the default matchers option for image scanning as requested in #1838. now you can choose between stock matchers and CPE matchers when scanning images.

what's new:
- added --use-default-matchers flag to scan/image/patch commands
- true = stock matchers (default behavior)
- false = CPE matchers (more precise)

usage:
# use CPE matchers for more precise detection
kubescape scan image nginx:latest --use-default-matchers=false

# or in scan command
kubescape scan --scan-images --use-default-matchers=false

everything's backward compatible - existing code works exactly the same. just added the new option for folks who want more control over their vulnerability detection.

fixes #1838

Signed-off-by: aadarsh-nagrath <anagrath1@gmail.com>

cmd/patch/patch.go

@@ -28,6 +28,7 @@ var patchCmdExamples = fmt.Sprintf(`
 func GetPatchCmd(ks meta.IKubescape) *cobra.Command {
 	var patchInfo metav1.PatchInfo
 	var scanInfo cautils.ScanInfo
+	var useDefaultMatchers bool
 
 	patchCmd := &cobra.Command{
 		Use:     "patch --image <image>:<tag> [flags]",
@@ -49,6 +50,9 @@ func GetPatchCmd(ks meta.IKubescape) *cobra.Command {
 				return err
 			}
 
+			// Set the UseDefaultMatchers field in scanInfo
+			scanInfo.UseDefaultMatchers = useDefaultMatchers
+
 			results, err := ks.Patch(&patchInfo, &scanInfo)
 			if err != nil {
 				return err
@@ -76,6 +80,7 @@ func GetPatchCmd(ks meta.IKubescape) *cobra.Command {
 	patchCmd.PersistentFlags().BoolVarP(&scanInfo.VerboseMode, "verbose", "v", false, "Display full report. Default to false")
 
 	patchCmd.PersistentFlags().StringVarP(&scanInfo.FailThresholdSeverity, "severity-threshold", "s", "", "Severity threshold is the severity of a vulnerability at which the command fails and returns exit code 1")
+	patchCmd.PersistentFlags().BoolVarP(&useDefaultMatchers, "use-default-matchers", "", true, "Use default matchers (true) or CPE matchers (false) for image scanning")
 
 	return patchCmd
 }