Bump mathlib dependency to f331b1b (#192)

Author: RemyDegenne

lake-manifest.json

@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "79d0395a1825a6264ad5d269e35e60537518955e",
+   "rev": "f331b1b9987abdec66954fbe4f00dc2cdd4d73c8",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "79d0395a1825a6264ad5d269e35e60537518955e",
+   "inputRev": "f331b1b9987abdec66954fbe4f00dc2cdd4d73c8",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/verso",

lakefile.toml

@@ -17,7 +17,7 @@ rev = "main"
 [[require]]
 name = "mathlib"
 scope = "leanprover-community"
-rev = "79d0395a1825a6264ad5d269e35e60537518955e"
+rev = "f331b1b9987abdec66954fbe4f00dc2cdd4d73c8"
 
 [[lean_lib]]
 name = "LeanMachineLearning"