raise timeout in integration tests for curl adapter (#576)

The default timeout of solarium of 5s seems to be too aggressive on travis and causes random test failures. Set it to the PHP default of 13s.

tests/Integration/TechproductsAdapters/TechproductsCurlTest.php

@@ -9,4 +9,11 @@ use Solarium\Tests\Integration\AbstractTechproductsTest;
  */
 class TechproductsCurlTest extends AbstractTechproductsTest
 {
+    public function setUp()
+    {
+        parent::setUp();
+        // The default timeout of solarium of 5s seems to be too aggressive on travis and causes random test failures.
+        // Set it to the PHP default of 13s.
+        $this->client->getEndpoint()->setTimeout(CURLOPT_TIMEOUT);
+    }
 }