Aligned VideoTutorials entry in fieldtrial testing config with finch

Bug: None
Change-Id: I347e159bf8913e36239019f227bacb6389ed3122
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2594182Reviewed-by: Jesse Doherty <jwd@chromium.org>
Commit-Queue: Shakti Sahu <shaktisahu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#838198}

testing/variations/fieldtrial_testing_config.json

@@ -8083,7 +8083,12 @@
                 {
                     "name": "Enabled",
                     "params": {
-                        "summary_card_poster_url": "https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png"
+                        "base_url": "https://staging-gsaprototype-pa.sandbox.googleapis.com",
+                        "default_locale": "en",
+                        "experiment_tag": "",
+                        "fetch_frequency": "15",
+                        "summary_card_poster_url": "https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png",
+                        "use_animated_gif_url": "false"
                     },
                     "enable_features": [
                         "VideoTutorials"