Rename TruffleHog to lowercase (#67)

iterative/helm-charts#128 (comment)

Author: 0x2b3bfa0

.github/workflows/leaked-secrets-scan.yaml

@@ -8,7 +8,7 @@ on:
       - "[0-9]+.[0-9]+.x"
   workflow_dispatch:
 jobs:
-  TruffleHog:
+  trufflehog:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code