tests: Fix tests on Windows

Author: penberg

integration-tests/tests/async.test.js

@@ -376,6 +376,8 @@ test.serial("Timeout option", async (t) => {
     // Allow some tolerance for the timeout.
     t.is(elapsed > timeout/2, true);
   }
+  conn1.close();
+  conn2.close();
   fs.unlinkSync(path);
 });
 

integration-tests/tests/sync.test.js

@@ -440,6 +440,8 @@ test.serial("Timeout option", async (t) => {
     // Allow some tolerance for the timeout.
     t.is(elapsed > timeout/2, true);
   }
+  conn1.close();
+  conn2.close();
   fs.unlinkSync(path);
 });