CDash submissions should be done with https now

(cherry picked from commit 19378c2)

Author: julienmalik

CTestConfig.cmake

@@ -7,7 +7,7 @@
 set(CTEST_PROJECT_NAME "QGIS")
 set(CTEST_NIGHTLY_START_TIME "20:00:00 CEST")
 
-set(CTEST_DROP_METHOD "http")
+set(CTEST_DROP_METHOD "https")
 set(CTEST_DROP_SITE "dash.orfeo-toolbox.org")
 set(CTEST_DROP_LOCATION "/submit.php?project=QGIS")
 set(CTEST_DROP_SITE_CDASH TRUE)