test trivy severity through env

Author: Ian-Nara

actions/vulnerability_scan/action.yaml

@@ -120,9 +120,9 @@ runs:
       format: 'table'
       exit-code: '1'
       ignore-unfixed: true
-      severity: ${{ inputs.failure_severity }}
+      severity: HIGH,CRITICAL
       hide-progress: true
     env:
       TRIVY_SKIP_DB_UPDATE: true
       TRIVY_SKIP_JAVA_DB_UPDATE: true
-      TRIVY_SEVERITY: ${{ inputs.failure_severity }}
+      TRIVY_SEVERITY: HIGH,CRITICAL