[refactor] Rename test file to allow any getpeerinfo deprecations.

Simple rename/restructure to allow for upcoming test additions.

test/functional/test_runner.py

@@ -251,7 +251,7 @@ BASE_SCRIPTS = [
     'feature_config_args.py',
     'feature_settings.py',
     'rpc_getdescriptorinfo.py',
-    'rpc_getpeerinfo_banscore_deprecation.py',
+    'rpc_getpeerinfo_deprecation.py',
     'rpc_help.py',
     'feature_help.py',
     'feature_shutdown.py',