chore(grfn): move meta.targets definitions to meta.ci.targets

Change-Id: I1b77319a7218157818b4e48fadb98d00790b7f67
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5253
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI

users/grfn/bbbg/default.nix

@@ -10,7 +10,7 @@ let
   };
 in
 rec {
-  meta.targets = [
+  meta.ci.targets = [
     "db-util"
     "server"
     "tf"

users/grfn/keyboard/default.nix

@@ -59,5 +59,5 @@ rec {
       -w ${layout}
   '';
 
-  meta.targets = [ "layout" ];
+  meta.ci.targets = [ "layout" ];
 }

users/grfn/system/home/default.nix

@@ -26,7 +26,7 @@ rec {
 
   yerenHome = yeren.activation-script;
 
-  meta.targets = [
+  meta.ci.targets = [
     "yerenHome"
   ];
 }

users/grfn/system/system/default.nix

@@ -28,7 +28,7 @@ rec {
 
   iso = import ./iso.nix args;
 
-  meta.targets = [
+  meta.ci.targets = [
     "mugwumpSystem"
     "roswellSystem"
     "yerenSystem"