Test installing tensor 2.1.4

Author: mlocati

features/pecl/install-extensions.feature

@@ -20,6 +20,7 @@ Feature: download and install PECL extensions
       | apc       | APC       |
       | apcu      | apcu      |
       | mongo     | mongo     |
+      | tensor    | tensor    |
       | zstd      | zstd      |
 
   Scenario Outline: Does NOT install extensions from PECL repository having wrong version in source code

tests/pecl-website/assets/tensor-2.1.4.tgz

@@ -67,6 +67,7 @@ static function ($errno, $errstr, $errfile, $errline): void {
     '/get/oci8/2.0.8' => "{$assetsDir}/oci8-2.0.8.tgz",
     '/get/sqlsrv' => "{$assetsDir}/sqlsrv-5.9.0beta2.tgz",
     '/get/swoole' => "{$assetsDir}/swoole-4.6.2.tgz",
+    '/get/tensor' => "{$assetsDir}/tensor-2.1.4.tgz",
     '/get/yaml' => "{$assetsDir}/yaml-2.2.1.tgz",
     '/get/zstd' => "{$assetsDir}/zstd-0.10.0.tgz",
 ];