minor #49088 Update license years (last time) (fabpot)

This PR was squashed before being merged into the 5.4 branch.

Discussion
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Update license years (last time)

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       | n/a

Commits
-------

89f86de567 Fix LICENSE CI check
d2e034abf0 Update license years (last time)

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2015-2023 Fabien Potencier
+Copyright (c) 2015-present Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal