bump microlp (#92)

Author: Specy

Cargo.toml

@@ -38,7 +38,7 @@ minilp = [
 
 [dependencies]
 coin_cbc = { version = "0.1", optional = true, default-features = false }
-microlp = { version = "0.2.6", optional = true }
+microlp = { version = "0.2.11", optional = true }
 lpsolve = { version = "0.1", optional = true }
 highs = { version = "1.7.0", optional = true }
 russcip = { version = "0.6.4", optional = true }