perf(tabs): add passive scroll event listeners

.changeset/tabs-passive-scroll.md

@@ -0,0 +1,5 @@
+---
+"@patternfly/elements": patch
+---
+
+`<pf-tabs>`: scroll event listeners are now passive for better performance.

elements/pf-tabs/pf-tabs.ts

@@ -1,5 +1,6 @@
 import { html, LitElement, type TemplateResult } from 'lit';
 import { customElement } from 'lit/decorators/custom-element.js';
+import { eventOptions } from 'lit/decorators/event-options.js';
 import { property } from 'lit/decorators/property.js';
 import { query } from 'lit/decorators/query.js';
 import { provide } from '@lit/context';
@@ -180,7 +181,7 @@ export class PfTabs extends LitElement {
           <!-- tablist -->
           <div id="tabs" part="tabs" role="tablist">
             <!-- Must contain one or more \`<pf-tab>\` -->
-            <slot name="tab" @slotchange="${this.#onSlotChange}" @scroll="${this.#overflow.onScroll}"></slot>
+            <slot name="tab" @slotchange="${this.#onSlotChange}" @scroll="${this.onScroll}"></slot>
           </div>
           ${!this.#overflow.showScrollButtons ? '' : html`
           <button id="nextTab" tabindex="-1"
@@ -201,6 +202,11 @@ export class PfTabs extends LitElement {
     `;
   }
 
+  @eventOptions({ passive: true })
+  private onScroll() {
+    this.#overflow.onScroll();
+  }
+
   #scrollLeft() {
     this.#overflow.scrollLeft();
   }