treewide: Change URLs to HTTPS

Lots of URLs were HTTP redirect to HTTPS. Changed those and checked them
if there's actual content. Inspired by
https://github.com/NixOS/nixpkgs/issues/60004

pkgs/tools/filesystems/dosfstools/default.nix

@@ -18,8 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Utilities for creating and checking FAT and VFAT file systems";
-    repositories.git = git://daniel-baumann.ch/git/software/dosfstools.git;
-    homepage = https://www.daniel-baumann.ch/software/dosfstools/;
+    homepage = https://github.com/dosfstools/dosfstools;
     platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     license = stdenv.lib.licenses.gpl3;
   };