Bug 571550 - Correct lower bound of import for gson in o.e.tips.json

Commit 5c2fb648 made use of API available only as of gson 2.8.6.

Change-Id: I743dafdf7c88ffe2209d74615f522fac3276b784
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
1 file changed