treewide: http -> https sources (#42676)

* treewide: http -> https sources

This updates the source urls of all top-level packages from http to
https where possible.

* buildtorrent: fix url and tab -> spaces

pkgs/tools/X11/bumblebee/default.nix

@@ -65,7 +65,7 @@ in stdenv.mkDerivation rec {
   name = "bumblebee-${version}";
 
   src = fetchurl {
-    url = "http://bumblebee-project.org/${name}.tar.gz";
+    url = "https://bumblebee-project.org/${name}.tar.gz";
     sha256 = "03p3gvx99lwlavznrpg9l7jnl1yfg2adcj8jcjj0gxp20wxp060h";
   };