urlmon/tests: Fix some leaks (Valgrind).

dlls/urlmon/tests/uri.c

@@ -8366,6 +8366,7 @@ static void test_IUri_GetPropertyLength(void) {
                 /* Value may be unicode encoded */
                 expectedValueW = a2w(prop.value);
                 expectedLen = lstrlenW(expectedValueW);
+                heap_free(expectedValueW);
 
                 /* This won't be necessary once GetPropertyLength is implemented. */
                 receivedLen = -1;
@@ -11538,6 +11539,7 @@ static void test_IPersistStream(void)
         ok(hr == S_OK, "%d) Error creating uninitialized Uri: 0x%08x.\n", i, hr);
         hr = IUri_QueryInterface(uri, &IID_IMarshal, (void**)&marshal);
         ok(hr == S_OK, "%d) QueryInterface failed 0x%08x, expected S_OK.\n", i, hr);
+        IUri_Release(uri);
         hr = IMarshal_UnmarshalInterface(marshal, stream, &IID_IUri, (void**)&uri);
         ok(hr == S_OK, "%d) UnmarshalInterface failed 0x%08x, expected S_OK.\n", i, hr);
         hr = IUri_GetRawUri(uri, &raw_uri);