Remove dependencies / build-dependencies on pcre3
The lib PCRE3 will be removed from Debian before the next release.
The Debian bug message is
Your package still depends on the old, obsolete PCRE3[0] libraries (i.e. libpcre3-dev). This has been end of life for a while now, and upstream do not intend to fix any further bugs in it. Accordingly, I would like to remove the pcre3 libraries from Debian, preferably in time for the release of Bookworm.
The newer PCRE2 library was first released in 2015, and has been in Debian since stretch. Upstream's documentation for PCRE2 is available here: https://pcre.org/current/doc/html/
Many large projects that use PCRE have made the switch now (e.g. git, php); it does involve some work, but we are now at the stage where PCRE3 should not be used, particularly if it might ever be exposed to untrusted input.