Fix the priority of POST_RESPOND

Author: dunglas

src/EventListener/EventPriorities.php

@@ -27,5 +27,5 @@ final class EventPriorities
     const PRE_WRITE = 33;
     const POST_WRITE = 31;
     const PRE_RESPOND = 9;
-    const POST_RESPOND = 7;
+    const POST_RESPOND = 0;
 }

tests/EventListener/EventPrioritiesTest.php

@@ -29,6 +29,6 @@ public function testConstants()
         $this->assertEquals(33, EventPriorities::PRE_WRITE);
         $this->assertEquals(31, EventPriorities::POST_WRITE);
         $this->assertEquals(9, EventPriorities::PRE_RESPOND);
-        $this->assertEquals(7, EventPriorities::POST_RESPOND);
+        $this->assertEquals(0, EventPriorities::POST_RESPOND);
     }
 }