Fix chrome bookmarks test

Summary:
The urls were changed from http to https in the test's source files
with 6d6d3c5b3e4be08ef13c8d0187a8d0a04bbd27d3 but not in the json test
files.

Test Plan: Built fine and the test passed with a clean build dir

Reviewers: Plasma, yurchor

Subscribers: plasma-devel

Tags: Plasma

Differential Revision: https://phabricator.kde.org/D27281