message: VP9 test: change threshold to allow resizing for twice
  Recent change in libvpx allows a second resize for low resolution.
  Cr-Commit-Position: refs/heads/master@{#30719}
diff: @@ -188,7 +188,7 @@ TEST(VideoCodecTestLibvpx, VeryLowBitrateVP9) {
  std::vector<RateProfile> rate_profiles = {{50, 30, 0}};
  std::vector<RateControlThresholds> rc_thresholds = {
  - {15, 3, 75, 1, 0.5, 0.4, 1, 1}};
  + {15, 3, 75, 1, 0.5, 0.4, 2, 1}};
  std::vector<QualityThresholds> quality_thresholds = {{28, 25, 0.80, 0.65}};
  