[BUG] Notices/Warnings in error.log when updating

[math-GH]

Describe the bug

I found these lines in my php error.log after an update

[03-Nov-2023 23:52:15 Europe/Berlin] PHP Notice:  Only variables should be passed by reference in /XXX/freshRSS/data/update.php on line 156
[03-Nov-2023 23:52:15 Europe/Berlin] PHP Warning:  unlink(/XXX/freshRSS/data/shares.php): No such file or directory in /XXX/freshRSS/data/update.php on line 167
[03-Nov-2023 23:52:16 Europe/Berlin] PHP Warning:  copy(/XXX/freshRSS/data/update_package/FreshRSS-edge/data/shares.php): Failed to open stream: No such file or directory in /XXX/freshRSS/data/update.php on line 175

Environment information (please complete the following information):

• FreshRSS version: 1.22.2-dev

• Database version: Mysql

• [ ] PHP Notice

• [x] PHP Warning

• [x] PHP Warning