Many integration tests fail with "SocketTimeoutException: Read timed out"

[php-coder]

Log: https://github.com/php-coder/mystamps/actions/runs/6334643331/job/17204567411

2023-09-28 04:49:46.582 [user:1 ]  WARN 3814 --- [tp1923810797-19] w.f.s.HttpURLConnectionDownloaderService : Couldn't download file

java.net.SocketTimeoutException: Read timed out
...

[php-coder]

Regression after 08a07ce (#1244) commit where I reduced number of threads to minimum, so it became impossible to download image (/image/1) from a server.