Update copyright year

Co-authored-by: Alon Zakai <[email protected]>

test/test_emscripten_overlapped_package.c

@@ -1,4 +1,4 @@
-// Copyright 2013 The Emscripten Authors.  All rights reserved.
+// Copyright 2025 The Emscripten Authors.  All rights reserved.
 // Emscripten is available under two separate licenses, the MIT license and the
 // University of Illinois/NCSA Open Source License.  Both these licenses can be
 // found in the LICENSE file.