chore: update license information for renovate.json [ci skip]

Author: artemrys

.licenserc.yaml

@@ -34,6 +34,7 @@ header:
     - "pytest_splunk_addon/standard_lib/**/*.xsd"
     - "MANIFEST.in"
     - "entrypoint.sh"
+    - "renovate.json"
     - "pytest_splunk_addon/.ignore_splunk_internal_errors"
 
   comment: on-failure