update sources

did not update nixpkgs-unstabele due to a compliler version problem
vaultwarden 2.23 needs rustc 1.57, only rustc 1.56.1 is available

nix/sources.json

@@ -11,10 +11,10 @@
         "homepage": "https://nix-community.github.io/home-manager/",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "ff2bed9dac84fb202bbb3c49fdcfe30c29d0b12f",
-        "sha256": "122azyrkbp508a1yrhnq2ja2kj9whdmpb1qwgnmdaz87l02m0m26",
+        "rev": "bcf03fa16a1f06b8a0abb27bf49afa8d6fffe8f1",
+        "sha256": "0nznlb2xgkvdav6d4qls2w81m3p3h4hdbwbp2nwqkiszkp7j1bln",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/ff2bed9dac84fb202bbb3c49fdcfe30c29d0b12f.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/bcf03fa16a1f06b8a0abb27bf49afa8d6fffe8f1.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "mattermost-server": {
@@ -49,10 +49,10 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "65a61b147f307d24bfd0a5cd56ce7d7b7cc61d2e",
-        "sha256": "17mirpsx5wyw262fpsd6n6m47jcgw8k2bwcp1iwdnrlzy4dhcgqh",
+        "rev": "5830a4dd348d77e39a0f3c4c762ff2663b602d4c",
+        "sha256": "1d3lsrqvci4qz2hwjrcnd8h5vfkg8aypq3sjd4g3izbc8frwz5sm",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/65a61b147f307d24bfd0a5cd56ce7d7b7cc61d2e.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/5830a4dd348d77e39a0f3c4c762ff2663b602d4c.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nix-hexchen": {
@@ -81,10 +81,10 @@
         "homepage": "",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e3699f9a4be7f9e12e697e7dc8ee6a0ec790e9e1",
-        "sha256": "0dqgwmpfmzcinfk21kqmvjgwm6j0dlc9pd2614my5dfjjl9nfx9w",
+        "rev": "46251a79f752ae1d46ef733e8e9760b6d3429da4",
+        "sha256": "1xsp0xyrf8arjkf4wi09n96kbg0r8igsmzx8bhc1nj4nr078p0pg",
         "type": "tarball",
-        "url": "https://github.com/nixos/nixpkgs/archive/e3699f9a4be7f9e12e697e7dc8ee6a0ec790e9e1.tar.gz",
+        "url": "https://github.com/nixos/nixpkgs/archive/46251a79f752ae1d46ef733e8e9760b6d3429da4.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs-unstable": {