PHPLIB-586: Log test results to xunit

Author: alcaeus

.evergreen/config.yml

@@ -162,9 +162,9 @@ functions:
         display_name: "drivers-dir.tar.gz"
 
   "upload test results":
-    - command: attach.results
+    - command: attach.xunit_results
       params:
-        file_location: "${PROJECT_DIRECTORY}/test-results.json"
+        file: "${PROJECT_DIRECTORY}/test-results.xml"
     - command: attach.results
       params:
         file_location: "${DRIVERS_TOOLS}/results.json"

phpunit.evergreen.xml

@@ -26,11 +26,7 @@
         </testsuite>
     </testsuites>
 
-    <listeners>
-        <listener class="MongoDB\Tests\EvergreenLogListener">
-            <arguments>
-                <string>test-results.json</string>
-            </arguments>
-        </listener>
-    </listeners>
+    <logging>
+        <log type="junit" target="test-results.xml" />
+    </logging>
 </phpunit>