From 0d9d190dca9433bdaaa4f644a6ba114031878834 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 18 May 2026 23:55:58 +0000
Subject: [PATCH] Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
(cherry picked from commit 3eeba953a50fea3449e944d726f311dde6a2d973)
---
 .github/workflows/copilot-setup-steps.yml  | 2 +-
 .github/workflows/math-check.yml           | 6 +++---
 .github/workflows/wolfram-verification.yml | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index 730c7d52..9923db62 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Lean
         uses: Julian/setup-lean@main
diff --git a/.github/workflows/math-check.yml b/.github/workflows/math-check.yml
index 167453ad..963a1b01 100644
--- a/.github/workflows/math-check.yml
+++ b/.github/workflows/math-check.yml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           submodules: false
@@ -123,7 +123,7 @@ jobs:
     if: github.event_name == 'pull_request'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -143,7 +143,7 @@ jobs:
     if: github.event_name == 'pull_request'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           # We deliberately do not smudge LFS pointers here -- the pre-commit
diff --git a/.github/workflows/wolfram-verification.yml b/.github/workflows/wolfram-verification.yml
index 07a90d1b..aa777cd6 100644
--- a/.github/workflows/wolfram-verification.yml
+++ b/.github/workflows/wolfram-verification.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0