chore: bump mathlib to dc84fcb: chore: delete deprecated modules from February 2026 (#43057) (2026-08-24)

Author: github-actions[bot]

lake-manifest.json

@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "cf65d43b4f5e1a79482e8c488d121853b9d7ca05",
+   "rev": "dc84fcbe9e049439c1c36d6db290cc0565f77788",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "cf65d43b4f5e1a79482e8c488d121853b9d7ca05",
+   "inputRev": "dc84fcbe9e049439c1c36d6db290cc0565f77788",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/verso",

lakefile.toml

@@ -17,7 +17,7 @@ rev = "v4.33.0"
 [[require]]
 name = "mathlib"
 scope = "leanprover-community"
-rev = "cf65d43b4f5e1a79482e8c488d121853b9d7ca05"
+rev = "dc84fcbe9e049439c1c36d6db290cc0565f77788"
 
 [[lean_lib]]
 name = "LeanMachineLearning"