Rotate logs using logrotate

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/914ef51ffa88d9b386c71bdc88bffc5273c08ada' (2022-06-12)
  → 'github:NixOS/nixpkgs/6616de389ed55fba6eeba60377fc04732d5a207c' (2022-06-14)

configuration.nix

@@ -69,7 +69,15 @@ in {
   boot.cleanTmpDir = true;
 
   # Rotate logs after 7 days
-  services.journald.extraConfig = "SystemMaxFiles=7";
+  services.logrotate = {
+    enable = true;
+    settings = {
+      "/var/log/journal" = {
+        frequency = "weekly";
+        rotate = 7;
+      };
+    };
+  };
 
   # Allow propietary software and build packages with Pulseaudio support
   nixpkgs.config = {

flake.lock

@@ -38,11 +38,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1655043425,
-        "narHash": "sha256-A+oT+aQGhW5lXy8H0cqBLsYtgcnT5glmGOXWQDcGw6I=",
+        "lastModified": 1655221618,
+        "narHash": "sha256-ht8HRFthDKzYt+il+sGgkBwrv+Ex2l8jdGVpsrPfFME=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "914ef51ffa88d9b386c71bdc88bffc5273c08ada",
+        "rev": "6616de389ed55fba6eeba60377fc04732d5a207c",
         "type": "github"
       },
       "original": {