v0.56.1

Nemo v0.56.1

New or extended functionality

• #2334 Update FLINT to v3.6.0

Performance improvements or improved testing

• #2315 Add in-place mul! specializations for modular matrices
• #2316 Add sub! for ZZModMatrix / FpMatrix

Fixed bugs that returned incorrect results

• #2325 Fix a subtle bug in digits! for negative inputs
  Full diff since v0.56.0