net-im/py-matrix-synapse: Update to 1.45.1

• Lower the bounds for pysaml2 to reflect upstream
• Also add dependency on pyjwt for jwt feature (implied)

PR: 258419
Approved by: Sascha Biberhofer <ports at skyforge dot at>

(cherry picked from commit de975a8893aa319c9066d9198fb79a139fca55f3)