hydra, server7: increase maxJobs from 4 to 10

hosts/hydra/configuration.nix

@@ -45,7 +45,7 @@
     distributedBuilds = true;
     package = pkgs.nixFlakes;
     useSandbox = false;
-    maxJobs = lib.mkDefault 4;
+    maxJobs = lib.mkDefault 10;
     autoOptimiseStore = true;
     gc = {
       automatic = true;

hosts/hydra/hydra.nix

@@ -9,13 +9,14 @@
       {
         hostName = "localhost";
         system = "x86_64-linux";
-        maxJobs = 2;
+        maxJobs = 10;
       }
       {
         hostName = "server7.hq.c3d2.de";
         system = "x86_64-linux";
         sshUser = "buildfarmer";
         sshKey = "/root/.ssh/id_ed25519";
+        maxJobs = 10;
       }
     ];
   };

hosts/server7/configuration.nix

@@ -50,6 +50,7 @@ in {
   programs.mosh.enable = true;
 
   nix = {
+    maxJobs = lib.mkDefault 10;
     package = pkgs.nixFlakes;
     extraOptions = "experimental-features = nix-command flakes";
     gc.automatic = true;