SuperSize: Update versions in generate_milestone_reports.py

Change-Id: Ia041cfab55543c476f85ed92e0f82812ce1e011d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1716917
Auto-Submit: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Eric Stevenson <estevenson@chromium.org>
Commit-Queue: Eric Stevenson <estevenson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680451}

tools/binary_size/generate_milestone_reports.py

@@ -60,8 +60,8 @@ _DESIRED_VERSIONS = [
     '72.0.3626.105',
     '73.0.3683.75',
     '74.0.3729.112',
-    '75.0.3770.67',
-    '76.0.3809.13',  # Official build
+    '75.0.3770.143',
+    '76.0.3809.62',
 ]