Fix copyright end year for recently modified code

Follow up for eclipse-cdt#683

Author: jonahgraham

cmake/org.eclipse.cdt.cmake.ui/about.properties

@@ -1,5 +1,5 @@
 ###############################################################################
-# Copyright (c) 2015, 2023 Contributors to the Eclipse Foundation
+# Copyright (c) 2015, 2024 Contributors to the Eclipse Foundation
 #
 # See the NOTICE file(s) distributed with this work for additional
 # information regarding copyright ownership.
@@ -24,7 +24,7 @@ blurb=C/C++ CMake Build Support - Preview\n\
 Version: {featureVersion}\n\
 Build id: {0}\n\
 \n\
-Copyright (c) 2015, 2023 Contributors to the Eclipse Foundation
+Copyright (c) 2015, 2024 Contributors to the Eclipse Foundation
 \n\
 See the NOTICE file(s) distributed with this work for additional\n\
 information regarding copyright ownership.\n\