keyboard: Fix warning

warning: unused variable: `name`
   --> /var/scratch/librem5/squeekboard/src/keyboard.rs:195:10
    |
195 |     for (name, state) in keystates.iter() {
    |          ^^^^ help: consider prefixing with an underscore: `_name`

src/keyboard.rs

@@ -192,7 +192,7 @@ pub fn generate_keymap(
         key <BackSpace> {{ [ BackSpace ] }};"
     )?;
     
-    for (name, state) in keystates.iter() {
+    for (_name, state) in keystates.iter() {
         if let Action::Submit { text: _, keys } = &state.action {
             for keysym in keys.iter() {
                 write!(