fix: gomobile init fails due to changes to Go modules

Go install requires a version to be provided after the package name.
gomobile init is updated to reflect this new requirement

Fixes #50994

Author: morningsend

cmd/gomobile/init.go

@@ -78,7 +78,7 @@ func runInit(cmd *command) error {
 	}()
 
 	// Make sure gobind is up to date.
-	if err := goInstall([]string{"golang.org/x/mobile/cmd/gobind"}, nil); err != nil {
+	if err := goInstall([]string{"golang.org/x/mobile/cmd/gobind@latest"}, nil); err != nil {
 		return err
 	}