chore: Bump mathlib dependency to eb15deb (#598)

Bump `mathlib` dependency to
[eb15deb](leanprover-community/mathlib4@eb15deb):
chore(Combinatorics/SimpleGraph/Coloring/VertexColoring): rename to
`Vertex.lean` (#38349) (2026-06-07)
Previously at:
[d568c8c](leanprover-community/mathlib4@d568c8c):
chore: bump toolchain to v4.31.0-rc1 (#39980) (2026-05-29)

_This PR was last updated on 2026-06-07 by [this workflow
run](https://github.com/leanprover/cslib/actions/runs/27103918329). It
is an automated bump using
[downstream-reports/open-bump-pr](https://github.com/leanprover-community/downstream-reports)_

---------

Co-authored-by: mathlib-nightly-testing[bot] <mathlib-nightly-testing[bot]@users.noreply.github.com>
Co-authored-by: Chris Henson <chrishenson.net@gmail.com>

Author: mathlib-nightly-testing[bot]

Cslib/Computability/Languages/MyhillNerode.lean

@@ -7,7 +7,7 @@ Authors: Akhilesh Balaji, Ching-Tsun Chou
 module
 
 public import Cslib.Computability.Languages.RegularLanguage
-public import Mathlib.Data.Finite.Card
+public import Mathlib.SetTheory.Cardinal.NatCard
 
 /-! # Myhill-Nerode Theorem
 

Cslib/Computability/Languages/OmegaRegularLanguage.lean

@@ -12,7 +12,7 @@ public import Cslib.Computability.Automata.NA.BuchiInter
 public import Cslib.Computability.Automata.NA.Sum
 public import Cslib.Computability.Languages.Congruences.BuchiCongruence
 public import Cslib.Computability.Languages.ExampleEventuallyZero
-public import Mathlib.Data.Finite.Card
+public import Mathlib.SetTheory.Cardinal.NatCard
 public import Mathlib.Data.Finite.Sigma
 public import Mathlib.Logic.Equiv.Fin.Basic
 

lake-manifest.json

@@ -5,17 +5,17 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "d568c8c09630de097a046763c17b9ea99f95f950",
+   "rev": "eb15debe777b7e6e185d5d7534c48b78c99192f9",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "d568c8c09630de097a046763c17b9ea99f95f950",
+   "inputRev": "eb15debe777b7e6e185d5d7534c48b78c99192f9",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/plausible",
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "d575be693add4fe9cb996968968ce42ce75c5ccd",
+   "rev": "9196a81145e1e291a1469288e77392b0e1b9a493",
    "name": "plausible",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",

lakefile.toml

@@ -18,7 +18,7 @@ weak.linter.unicodeLinter = false
 [[require]]
 name = "mathlib"
 scope = "leanprover-community"
-rev = "d568c8c09630de097a046763c17b9ea99f95f950"
+rev = "eb15debe777b7e6e185d5d7534c48b78c99192f9"
 
 [[lean_lib]]
 name = "Cslib"