Housekeeping: update PlanetQt, revise template's URL

The list archive has converted to https, so adapt the URL linking to it.
PlanetQt has had some updates that don't affect anything QUIP-ish, but
let's keep up to date with it all the same.

Change-Id: I21dfe0ed0af02dbb34329107a21cd3bbfebdb32c
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 0 insertions, 0 deletions

diff --git a/planetqt b/planetqt
-Subproject a95fc537e3991c98f4dcb544c4f8ceb5b6b1005
+Subproject 32079c4c100eb38f8e102bdfab584f721ca1d3a