Use PCRE2 instead of PCRE

Description

As PCRE is deprecated and PCRE2 is now used by swig (see https://github.com/swig/swig/wiki/Getting-Started#linux---ubuntu and https://www.pcre.org/

Definition of Ready

Generic:

• If this issue is consequent, it is split into subtasks with priority and complexity evaluated. These subtasks should be linked to this issue. (To do on GitLab interface after writing this issue)
• Issue complexity evaluated
• Priority of issue evaluated
• If there is specific test data needed, it should be detailed and available
• If there is a specific documentation/specification need, it should be available to the development team
• Time during the sprint to realize this issue
• Blocking elements resolved (check if non-applicable, detail otherwise the resolved elements)

Definition of Done

Generic:

• No test regression on CI
• Code reviewed by peers
• Code cleaned, no "debug" traces or "TODO" comments kept.
• New code documented

Specific:

• Swig 4.4.0 compiles with the PCRE2