chore(deps): bump actions/checkout from 4 to 6 (#1904)

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](actions/checkout@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/CommonCI.yml

@@ -51,7 +51,7 @@ jobs:
         run: sudo rm -rf /opt/*
         if: ${{ startsWith(inputs.os, 'ubuntu-') && inputs.localjll }}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set TMPDIR and create directory
         # We have to use `${GITHUB_WORKSPACE}` instead of `github.workspace` because GitHub
@@ -107,7 +107,7 @@ jobs:
           cp LocalPreferences.toml test/
 
       # Compile Julia if assertions are enabled
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ inputs.assertions }}
         with:
           repository: "JuliaLang/julia"

.github/workflows/Documenter.yaml

@@ -34,7 +34,7 @@ jobs:
       group: ${{ github.workflow }}-${{ github.ref }}
       cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: "1.11"

.github/workflows/PreviewCleanup.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages
       - name: Delete preview and history + push changes

.github/workflows/benchmark.yml

@@ -39,7 +39,7 @@ jobs:
           - linux-x86-ct6e-180-4tpu
           - linux-x86-a2-48-a100-4gpu
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: "1.11"
@@ -74,7 +74,7 @@ jobs:
     needs: benchmark
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: "1"

.github/workflows/build-reactantjll.yml

@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Extract ENZYMEXLA_COMMIT from WORKSPACE
         id: extract_enzyme_jax_commit

.github/workflows/format-check-bazel.yml

@@ -7,7 +7,7 @@ jobs:
     name: Formatting Bazel files check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Setup buildifier
       uses: jbajic/setup-buildifier@v1

.github/workflows/format-check-cpp.yml

@@ -25,7 +25,7 @@ jobs:
   code-style-cpp:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: DoozyX/clang-format-lint-action@v0.20
         with:
           source: 'deps'

.github/workflows/format-pr-bazel.yml

@@ -10,7 +10,7 @@ jobs:
     name: Formatting Bazel files check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Setup buildifier
       uses: jbajic/setup-buildifier@v1

.github/workflows/format-pr.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           version: '1.10'
       - uses: julia-actions/cache@v2
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: main
       - name: Install JuliaFormatter.jl

.github/workflows/regenerate-mlir-bindings.yml

@@ -29,7 +29,7 @@ jobs:
           # Share repository cache between workflows.
           repository-cache: true
           bazelisk-version: 1.x
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install JuliaFormatter.jl
         shell: julia --color=yes {0}
         run: |