fix: Fix race condition when scanning for nested config files. (#6825)

Author: Jason3S

integration-tests/config/config.json

@@ -159,11 +159,12 @@
     {
       "path": "Azure/azure-rest-api-specs",
       "url": "https://github.com/Azure/azure-rest-api-specs.git",
+      "uniqueOnly": false,
       "args": [
-        "--config=cSpell.json",
+        "--config=cspell.json",
         "**/*.{md,ts,js}"
       ],
-      "commit": "f8a6ecd39798b8e1e7c62c475d678bafb6e6f915"
+      "commit": "5f84fd4cb51170b038e4f3987970ed1aecc55ab2"
     },
     {
       "path": "pycontribs/jira",