bug #6282 feat: allow slug field to be triggered by select fields als…

…o (Romaixn)

This PR was squashed before being merged into the 4.x branch.

Discussion
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feat: allow slug field to be triggered by select fields also

Currently, when targeting `ChoiceField` for example, the `SlugField` don't update, due to event listener only on `keyup`.

Commits
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b7c8c0d feat: allow slug field to be triggered by select fields also

assets/js/field-slug.js

@@ -140,7 +140,7 @@ class Slugger {
      */
     listenTarget() {
         for (const target of this.targets) {
-            target.addEventListener('keyup', () => {
+            target.addEventListener('input', () => {
                 if ('readonly' === this.field.getAttribute('readonly')) {
                     this.updateValue();
                 }