Suppress another file for CredScan (#9478)

.config/CredScanSuppressions.json

@@ -4,6 +4,10 @@
         {
             "file": "src\\vs\\base\\test\\common\\uri.test.ts",
             "_justification": "External code"
+        },
+        {
+            "file": "build\\actions\\AutoLabel\\dist\\index.js",
+            "_justification": "False positive from webpacked code"
         }
     ]
 }