Version bump for safety tips.

This CL adds another test path for safety tip testing, this time with a
publicly-accessible URL.

Change-Id: I3aabd87401bd8bc602188293dfe9bdbc13a766a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1769305
Auto-Submit: Joe DeBlasio <jdeblasio@chromium.org>
Reviewed-by: Emily Stark <estark@chromium.org>
Commit-Queue: Joe DeBlasio <jdeblasio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690037}

chrome/browser/resources/safety_tips/safety_tips.asciipb

@@ -8,7 +8,7 @@
 # locally, generate and push the protobuffer to the storage bucket but do not
 # check in the changes.
 
-version_id: 3
+version_id: 4
 
 # See chrome/browser/lookalikes/safety_tips.proto for the full format.
 # These entries must be sorted alphabetically by pattern.