content: update popular packages on the homepage
content: update popular packages on the homepage

Updates b/131860935

Change-Id: I6d9ae379c3a0e403fab5a17e0ef841b306f2f732
Reviewed-on: https://team-review.git.corp.google.com/c/golang/discovery/+/593070
Reviewed-by: Dmitri Shuralyov <d181b7fea0ec87c86ba5a890ab716db52498e3ba@google.com>

golang/pkgsite,golang/pkgsite,golang/pkgsite,golang/pkgsite