Several PHP 8.2 deprecation warnings

[pjotrek-b]

Moving from PHP7 to PHP8(.2), gives a few deprecation warnings.
Please use this issue to collect them 😄

[pjotrek-b]

The property $this->logFile really was not declared in class TaskCopy

[pjotrek-b]

No known deprecation warnings at the moment.
Feel free to re-open this, and assign sub-tasks if future warnings appear for this PHP version.