Upgrade to release 5.6.0:
- Use Flask test client's own environ dict if it is available
- Add Python 3.13, 3.14 and pypy-3.11 to CI builds, drop 3.8 and 3.9
- Documentation: Added an example using the init_app() method
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
