WebRtcHybridAgc experiment: update fieldtrial_testing_config.json

Bug: chromium:873650
Change-Id: I7db44c72a6be5045525db6047f0c950baa3f8c36
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2580525Reviewed-by: Olga Sharonova <olka@chromium.org>
Commit-Queue: Ale Bzk <alessiob@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835149}

testing/variations/fieldtrial_testing_config.json

@@ -8266,8 +8266,15 @@
                 {
                     "name": "Enabled",
                     "params": {
-                        "saturation_margin": "5",
-                        "use_peaks_not_rms": "false"
+                        "avx2_allowed": "true",
+                        "extra_saturation_margin": "5",
+                        "gain_applier_speech_frames_threshold": "6",
+                        "initial_saturation_margin": "20",
+                        "level_estimator_speech_frames_threshold": "6",
+                        "max_gain_change_db_per_second": "3",
+                        "max_output_noise_level_dbfs": "-55",
+                        "use_peaks_not_rms": "false",
+                        "vad_probability_attack": "0.3"
                     },
                     "enable_features": [
                         "WebRtcHybridAgc"