stdlib: Change default gem5-resources DB collection

This was set to "test_collection", which was used during development.
Changing to "resources".

Change-Id: I52c83c6b73f3a227fbb05dc321a4bc38210ad71c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/72018
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/python/gem5_default_config.py

@@ -29,7 +29,7 @@ config = {
         "gem5-resources": {
             "dataSource": "gem5-vision",
             "database": "gem5-vision",
-            "collection": "versions_test",
+            "collection": "resources",
             "url": "https://data.mongodb-api.com/app/data-ejhjf/endpoint/data/v1",
             "authUrl": "https://realm.mongodb.com/api/client/v2.0/app/data-ejhjf/auth/providers/api-key/login",
             "apiKey": "OIi5bAP7xxIGK782t8ZoiD2BkBGEzMdX3upChf9zdCxHSnMoiTnjI22Yw5kOSgy9",