v1.1.20

CVXPY 1.1.20 is a patch release (i.e., a bugfix release) in the 1.1.X release series. Special thanks to @mkoeppe for his contribution!

Changes since 1.1.19:

• Fix sign error with log_sum_exp (#1689).
• Handle new CyLP statuses from coin-or/CyLP#150 (#1707), from @mkoeppe.
• Update error message for mixed-integer problems (#1738).
• Propagate SCIP interface bugfix from PR (#1739).