mercurial: fix patch links again

The conclusion is that Phabricator does not, in fact, generate stable
patch links. In any case, these have landed, so we can just use the
patches from Mercurial's hgweb instance instead, which should be more
stable.

pkgs/applications/version-management/mercurial/default.nix

@@ -21,13 +21,13 @@ in python3Packages.buildPythonApplication rec {
   patches = [
     # https://phab.mercurial-scm.org/D10638, needed for below patch to apply
     (fetchpatch {
-      url = "https://phab.mercurial-scm.org/file/data/l7p2r4zcctcr3pzlybv2/PHID-FILE-bwjzxlz6sbegk3s4irik/D10638.diff";
-      sha256 = "0mfi324is02l7cnd3j0gbmg5rpyyqn3afg3f73flnfwmz5njqa5f";
+      url = "https://www.mercurial-scm.org/repo/hg/raw-rev/c365850b611490a5fdb235eb1cea310a542c2f84";
+      sha256 = "1gn3xvahbjdhbglffqpmj559w1bkqqsk70wqcanwv7nh972aqy9g";
     })
     # https://phab.mercurial-scm.org/D10639, fixes https://bz.mercurial-scm.org/show_bug.cgi?id=6514
     (fetchpatch {
-      url = "https://phab.mercurial-scm.org/file/data/v53nhburhtkhpccyecei/PHID-FILE-6v34oll6r2gkqo4ng5nt/D10639.diff";
-      sha256 = "0h5ilrd2x1789fr6sf4k1mcvxdh0xdyr94yawdacw87v3x12c8cb";
+      url = "https://www.mercurial-scm.org/repo/hg/raw-rev/c8f62920f07a40af3403ba9aefa1dac8a97d53ea";
+      sha256 = "1kw0xjg2c4jby0ncarjvpa5qafsyl1wzbk6jxls4hnxlxdl53nmn";
     })
   ];