Megalinter: tune grype linter

.mega-linter.yaml

@@ -48,6 +48,9 @@ REPOSITORY_DEVSKIM_ARGUMENTS: >-
   --ignore-globs .git/**,**/playbooks/files/calico.yaml
   --ignore-rule-ids DS126858,DS137138,DS169125,DS169126,DS176209
 
+# no check for terraform plugins
+REPOSITORY_GRYPE_ARGUMENTS: --exclude ./*/terraform/**
+
 # terraform_unused_declarations: common variables file
 # terraform_required_providers: common requirements file
 # terraform_required_version: common requirements file