bump LinearOperators compat to 2.9

Author: MaxenceGollier

Project.toml

@@ -18,7 +18,7 @@ SolverCore = "ff4d7338-4cf1-434d-91df-b86cb86fb843"
 TSVD = "9449cd9e-2762-5aa3-a617-5413e99d722e"
 
 [compat]
-LinearOperators = "2.7"
+LinearOperators = "2.9"
 NLPModels = "0.19, 0.20"
 NLPModelsModifiers = "0.7"
 Percival = "0.7.2"