maintainers: update all-maintainers.nix

Automated update of the master maintainers list combining:
- Home Manager specific maintainers from modules/lib/maintainers.nix
- Nixpkgs maintainers referenced in Home Manager modules

**Added:** 2 maintainers
**Removed:** 0 maintainers
**Total:** 290 → 292 maintainers

**✅ Added:** 0xdsqr, ojsef39

Generated by: lib/python/generate-all-maintainers.py

all-maintainers.nix

@@ -21,6 +21,13 @@
     name = "0xda157";
     source = "nixpkgs";
   };
+  "0xdsqr" = {
+    email = "me@dsqr.dev";
+    github = "0xdsqr";
+    githubId = 99584622;
+    name = "Dave Dennis";
+    source = "nixpkgs";
+  };
   "3ulalia" = {
     email = "3ulalia@proton.me";
     github = "3ulalia";
@@ -1847,6 +1854,13 @@
     name = "Judson Lester";
     source = "nixpkgs";
   };
+  ojsef39 = {
+    email = "josef.hofer@1und1.de";
+    github = "ojsef39";
+    githubId = 43563019;
+    name = "Josef Hofer";
+    source = "home-manager";
+  };
   olmokramer = {
     email = "olmokramer@users.noreply.github.com";
     github = "olmokramer";