update LinearOperator dep version

Author: dpo

Project.toml

@@ -12,7 +12,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
 FastClosures = "0.2.1, 0.3.0"
-LinearOperators = "^2.5.1"
+LinearOperators = "^2.7"
 NLPModels = "0.19, 0.20"
 julia = "^1.6.0"