feat: feature flags for sanitizing and stamping of uploads

config/packages/flagception.yaml

@@ -0,0 +1,9 @@
+# See full configuration at https://github.com/bestit/flagception-bundle
+flagception:
+    features:
+        sanitize_uploads:
+            default: false
+            env: FEATURE_SANITIZE_UPLOADS
+        stamp_invoices:
+            default: false
+            env: FEATURE_STAMP_INVOICES