treewide: replace defunct git://github.com urls with https://

Github has removed support for git://github.com and recommends
https://github.com instead.

See https://github.blog/2021-09-01-improving-git-protocol-security-github/

pkgs/applications/misc/slic3r/default.nix

@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   pname = "slic3r";
 
   src = fetchgit {
-    url = "git://github.com/alexrj/Slic3r";
+    url = "https://github.com/alexrj/Slic3r";
     rev = version;
     sha256 = "1pg4jxzb7f58ls5s8mygza8kqdap2c50kwlsdkf28bz1xi611zbi";
   };

pkgs/applications/networking/p2p/twister/default.nix

@@ -7,7 +7,7 @@ let
   twisterHTML = srcOnly {
     name = "twister-html";
     src = fetchgit {
-      url = "git://github.com/miguelfreitas/twister-html.git";
+      url = "https://github.com/miguelfreitas/twister-html.git";
       rev = "01e7f7ca9b7e42ed90f91bc42da2c909ca5c0b9b";
       sha256 = "0scjbin6s1kmi0bqq0dx0qyjw4n5xgmj567n0156i39f9h0dabqy";
     };

pkgs/applications/version-management/git-and-tools/darcs-to-git/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "2015-06-04";
 
   src = fetchgit {
-    url = "git://github.com/purcell/darcs-to-git.git";
+    url = "https://github.com/purcell/darcs-to-git.git";
     rev = "e5fee32495908fe0f7d700644c7b37347b7a0a5b";
     sha256 = "0lxcx0x0m1cv2j4x9ykpjf6r2zg6lh5rya016x93vkmlzxm3f0ji";
   };

pkgs/applications/video/byzanz/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   pname = "byzanz";
 
   src = fetchgit {
-    url = "git://github.com/GNOME/byzanz";
+    url = "https://github.com/GNOME/byzanz";
     rev = "1875a7f6a3903b83f6b1d666965800f47db9286a";
     sha256 = "0a72fw2mxl8vdcdnzy0bwis4jk28pd7nc8qgr4vhyw5pd48dynvh";
   };

pkgs/development/compilers/ghcjs/ghcjs-base.nix

@@ -10,7 +10,7 @@ mkDerivation {
   pname = "ghcjs-base";
   version = "0.2.0.3";
   src = fetchgit {
-    url = "git://github.com/ghcjs/ghcjs-base";
+    url = "https://github.com/ghcjs/ghcjs-base";
     sha256 = "15fdkjv0l7hpbbsn5238xxgzfdg61g666nzbv2sgxkwryn5rycv0";
     rev = "85e31beab9beffc3ea91b954b61a5d04e708b8f2";
   };

pkgs/development/interpreters/scsh/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "0.7pre";
 
   src = fetchgit {
-    url = "git://github.com/scheme/scsh.git";
+    url = "https://github.com/scheme/scsh.git";
     rev = "f99b8c5293628cfeaeb792019072e3a96841104f";
     fetchSubmodules = true;
     sha256 = "0ci2h9hhv8pl12sdyl2qwal3dhmd7zgm1pjnmd4kg8r1hnm6vidx";

pkgs/development/tools/parsing/hammer/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "e7aa734";
 
   src = fetchgit {
-    url = "git://github.com/UpstandingHackers/hammer";
+    url = "https://github.com/UpstandingHackers/hammer";
     sha256 = "01l0wbhz7dymxlndacin2vi8sqwjlw81ds2i9xyi200w51nsdm38";
     rev = "47f34b81e4de834fd3537dd71928c4f3cdb7f533";
   };

pkgs/os-specific/linux/disk-indicator/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "unstable-2014-05-19";
 
   src = fetchgit {
-    url = "git://github.com/MeanEYE/Disk-Indicator.git";
+    url = "https://github.com/MeanEYE/Disk-Indicator.git";
     rev = "51ef4afd8141b8d0659cbc7dc62189c56ae9c2da";
     sha256 = "10jx6mx9qarn21p2l2jayxkn1gmqhvck1wymgsr4jmbwxl8ra5kd";
   };

pkgs/tools/audio/pa-applet/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "unstable-2012-04-11";
 
   src = fetchgit {
-    url = "git://github.com/fernandotcl/pa-applet.git";
+    url = "https://github.com/fernandotcl/pa-applet.git";
     rev = "005f192df9ba6d2e6491f9aac650be42906b135a";
     sha256 = "1242sdri67wnm1cd0hr40mxarkh7qs7mb9n2m0g9dbz0f4axj6wa";
   };

pkgs/tools/networking/carddav-util/default.nix

@@ -5,7 +5,7 @@ stdenv.mkDerivation {
   version = "0.1-2014-02-26";
 
   src = fetchgit {
-    url = "git://github.com/ljanyst/carddav-util";
+    url = "https://github.com/ljanyst/carddav-util";
     rev = "53b181faff5f154bcd180467dd04c0ce69405564";
     sha256 = "0f0raffdy032wlnxfck6ky60r163nhqfbr311y4ry55l60s4497n";
   };

pkgs/tools/package-management/nixui/default.nix

@@ -3,7 +3,7 @@
 let
   version = "0.2.1";
   src = fetchgit {
-    url = "git://github.com/matejc/nixui.git";
+    url = "https://github.com/matejc/nixui.git";
     rev = "845a5f4a33f1d0c509c727c130d0792a5b450a38";
     sha256 = "1ay3i4lgzs3axbby06l4vvspxi0aa9pwiil84qj0dqq1jb6isara";
   };