Update dependency @mitre/saf to v1.6.0

Author: renovate[bot]

.github/workflows/scanning.yml

@@ -10,7 +10,7 @@ env:
   CURRENT_VERSION_TAG: "7.4.21"
   #github.event.repository.name is a special environment variable that gives us the repo name.  There isn't great documentation on it.
   IMAGE_NAME: ${{ vars.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }}:latest
-  MITRE_SAF_VERSION: "1.5.3"
+  MITRE_SAF_VERSION: "1.6.0"
 
 jobs:
   build: