feat: add tracker.delete function

Adds a delete method to the TrackerService class, enabling users to delete
tracker objects via the API.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Justintime50

CHANGELOG.md

@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## Next Release
+
+- Adds `tracker.delete` function
+
 ## v8.5.0 (2026-02-03)
 
 - Adds the following functions usable by child and referral customer users (closes #375):

lib/EasyPost/Service/TrackerService.php

@@ -78,4 +78,15 @@ public function retrieveBatch(mixed $params = null): mixed
 
         return InternalUtil::convertToEasyPostObject($this->client, $response);
     }
+
+    /**
+     * Delete a tracker.
+     *
+     * @param string $id
+     * @return void
+     */
+    public function delete(string $id): void
+    {
+        $this->deleteResource(self::serviceModelClassName(self::class), $id);
+    }
 }

test/EasyPost/TrackerTest.php

@@ -138,4 +138,21 @@ public function testRetrieveBatch(): void
 
         $this->assertContainsOnlyInstancesOf(Tracker::class, $trackers['trackers']);
     }
+
+    /**
+     * Test deleting a Tracker.
+     */
+    public function testDelete(): void
+    {
+        TestUtil::setupCassette('trackers/delete.yml');
+
+        $tracker = self::$client->tracker->create([
+            'tracking_code' => 'EZ1000000001',
+        ]);
+
+        // Nothing gets returned here, simply ensure no error gets raised
+        self::$client->tracker->delete($tracker->id);
+
+        $this->expectNotToPerformAssertions();
+    }
 }