Update use of HTTP to HTTPS in esri plugin
When accessed via HTTP, the arcgis.com endpoints return:
{"error":{"code":400,"message":"HTTP not supported","details":[]}}
With this change the esri plugin now accesses them via HTTPS.
[ChangeLog][plugins][esri]
Pick-to: 5.15 Fixes: QTBUG-92111 Change-Id: I7be0295f8c65853ab214bc11d7e6008f3137403a Reviewed-by: Qt CI Bot qt_ci_bot@qt-project.org Reviewed-by: Alex Blasche alexander.blasche@qt.io Reviewed-by: Guillaume Belz gbelz@esri.com (cherry picked from commit 492c629e)