build: bump LinearSolve compat

Author: AayushSabharwal

Project.toml

@@ -129,7 +129,7 @@ LabelledArrays = "1.3"
 Latexify = "0.11, 0.12, 0.13, 0.14, 0.15, 0.16"
 Libdl = "1"
 LinearAlgebra = "1"
-LinearSolve = "3"
+LinearSolve = "3.19.2"
 Logging = "1"
 MLStyle = "0.4.17"
 ModelingToolkitStandardLibrary = "2.20"