fix(pm/josh): update to master to fix redirect bug

In https://github.com/josh-project/josh/pull/1704 I fixed the way Josh
works with redirects. Since as that's not yet in a release, we'll need
to pull in Josh's master for it to be effective.

The bug prevented Josh working entirely with Tangled, since as Tangled
redirects .git -> bare in repo URLs rather than the other way around. As
we use Josh with Tangled, there was a period of time where we couldn't
clone or pull through it at all. This had a multitude of knock-on
effects including making it difficult for me to upstream patches (so I
often didn't bother) and entirely breaking our auto-sync mechanism
(which relies on Josh to pull out packetmix from patisserie)

packetmix/npins/sources.json

···
       "url": "https://github.com/nix-community/impermanence/archive/4b3e914cdf97a5b536a889e939fb2fd2b043a170.tar.gz",
       "hash": "sha256-LJggUHbpyeDvNagTUrdhe/pRVp4pnS6wVKALS782gRI="
     },
+    "josh": {
+      "type": "Git",
+      "repository": {
+        "type": "GitHub",
+        "owner": "josh-project",
+        "repo": "josh"
+      },
+      "branch": "master",
+      "submodules": false,
+      "revision": "fc2bb5f79a4fc96f0adb1e015b9ac155beac7b3a",
+      "url": "https://github.com/josh-project/josh/archive/fc2bb5f79a4fc96f0adb1e015b9ac155beac7b3a.tar.gz",
+      "hash": "sha256-/lwBR2FD5nC9Qn+0pgd5APw97auMDg/NeZl5I9VrgZk="
+    },
     "lanzaboote": {
       "type": "GitRelease",
       "repository": {

packetmix/packages/default.nix

···
     ./bluesky-pds
     ./collabora-gtimelog
     ./headscale
+    ./josh
     ./kavita
     ./lua-multipart
     ./OpenLinkHub

packetmix/packages/josh/default.nix

···
+# SPDX-FileCopyrightText: 2025 FreshlyBakedCake
+#
+# SPDX-License-Identifier: MIT
+{ config, ... }:
+{
+  config.packages.josh = {
+    systems = [ "x86_64-linux" ];
+    package =
+      { system, rustPlatform, ... }:
+      config.inputs.nixos-unstable.result.${system}.josh.overrideAttrs (prev: {
+        src = config.inputs.josh.result;
+
+        cargoDeps = rustPlatform.fetchCargoVendor {
+          name = "josh";
+
+          src = config.inputs.josh.result;
+
+          hash = "sha256-zY2dCDHhPTggZPhFoONHA4NIpv6k+hzKOUQDzheA/28=";
+        };
+      });
+  };
+}

packetmix/systems/teal/josh.nix

···
 #
 # SPDX-License-Identifier: MIT
 
-{ pkgs, lib, ... }:
+{
+  project,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  josh = project.packages.josh.result.${pkgs.system};
+in
 {
   users.users.git = {
     isSystemUser = true;
     group = "git";
-    shell = "${pkgs.josh}/bin/josh-ssh-shell";
+    shell = "${josh}/bin/josh-ssh-shell";
   };
   users.groups.git = { };
 
···
     environment =
       let
         url_config = repo: ''
-          [url "https://tangled.org/@freshlybakedca.ke/${repo}"]
+          [url "https://tangled.org/freshlybakedca.ke/${repo}.git"]
+            insteadOf = "https://tangled.org/freshlybakedca.ke/${repo}.git"
             insteadOf = "https://tangled.org/@freshlybakedca.ke/${repo}.git"
             insteadOf = "ssh://[e-mail]/freshlybakedca.ke/${repo}.git"
 
···
             pushInsteadOf = "ssh://[e-mail]/freshlybakedca.ke/${repo}.git"
         '';
         other_url_config = repo: ''
-          [url "https://tangled.org/@${repo}"]
+          [url "https://tangled.org/${repo}.git"]
+            insteadOf = "https://tangled.org/freshlybakedca.ke/${repo}.git"
             insteadOf = "https://tangled.org/@freshlybakedca.ke/${repo}.git"
             insteadOf = "ssh://[e-mail]/freshlybakedca.ke/${repo}.git"
 
···
     };
 
     script =
-      "${pkgs.josh}/bin/josh-proxy"
+      "${josh}/bin/josh-proxy"
       + " --local /var/lib/josh/local"
       + " --remote https://tangled.org/@freshlybakedca.ke"
       + " --remote ssh://[e-mail]/freshlybakedca.ke"