Adapt test to avoid failure jenkins jobs. Now with the fix on release shouldn't happened anymore

Author: arturobernalg

httpclient5/src/test/java/org/apache/hc/client5/http/impl/nio/H2SharingConnPoolTest.java

@@ -371,9 +371,11 @@ void testReleaseNonReusableNotInCacheReturnedToPool() throws Exception {
             return null;
         }).when(connPool).release(Mockito.eq(poolEntry), Mockito.anyBoolean());
 
-        h2SharingPool.release(poolEntry, false);
         // for reproduce https://issues.apache.org/jira/browse/HTTPCLIENT-2379
-        Assertions.assertThrows(IllegalStateException.class, () -> h2SharingPool.release(poolEntry, false));
+        h2SharingPool.release(poolEntry, false);
+        h2SharingPool.release(poolEntry, false);
+        h2SharingPool.release(poolEntry, false);
+        Mockito.verify(connPool).release(Mockito.same(poolEntry),Mockito.eq(false));
     }
 
     @Test