Merge pull request #138095 from VergeDX/gitHub.copilot

vscode-extensions.github.copilot: init at 1.4.2678

pkgs/misc/vscode-extensions/default.nix

···
       };
 
       github = {
+        copilot = buildVscodeMarketplaceExtension {
+          mktplcRef = {
+            publisher = "github";
+            name = "copilot";
+            version = "1.4.2678";
+            sha256 = "sha256-NryXLuMIZJngp2dBsGbNhBiblEthckw1Zk2vqMXIzFM=";
+          };
+          meta = { license = lib.licenses.unfree; };
+        };
+
         github-vscode-theme = buildVscodeMarketplaceExtension {
           mktplcRef = {
             name = "github-vscode-theme";