Add support for Linux ARM64 (#19931)

#1845

Co-authored-by: Lucas Manuel Rodriguez <lucas@fleetdm.com>
Co-authored-by: Roberto Dip <rroperzh@gmail.com>

ee/fleetctl/updates.go

@@ -259,7 +259,7 @@ func updatesAddFunc(c *cli.Context) error {
 		case name == "desktop" && platform == "windows":
 			// This is a special case for the desktop target on Windows.
 			dstPath = filepath.Join(filepath.Dir(dstPath), constant.DesktopAppExecName+".exe")
-		case name == "desktop" && platform == "linux":
+		case name == "desktop" && (platform == "linux" || platform == "linux-arm64"):
 			// This is a special case for the desktop target on Linux.
 			dstPath += ".tar.gz"
 		// The convention for Windows extensions is to use the extension `.ext.exe`
@@ -352,7 +352,7 @@ func updatesRotateCommand() *cli.Command {
 		Usage:     "Rotate signing keys",
 		ArgsUsage: "<role>",
 		Description: `Rotate the signing keys used for updates metadata signing. This should be used when keys are compromised or expiring.
-		
+
 role must be one of ['root', 'targets', 'timestamp', 'snapshot']
 		`,
 		Flags:  updatesFlags(),