Bump actions/checkout from 5.0.1 to 6.0.1

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.1 to 6.0.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5.0.1...v6.0.1)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/benchmark.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout PR
-        uses: actions/checkout@v5.0.1
+        uses: actions/checkout@v6.0.1
         with:
           persist-credentials: false
           fetch-depth: 0

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
         RUST:
           - nightly
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.1
         with:
           persist-credentials: false
 
@@ -68,7 +68,7 @@ jobs:
             FLAGS: "-Z direct-minimal-versions"
 
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.1
         with:
           persist-credentials: false
 
@@ -91,7 +91,7 @@ jobs:
   coverage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.1
         with:
           persist-credentials: false
 

.github/workflows/publish-crates.yml

@@ -11,7 +11,7 @@ jobs:
       id-token: write
       contents: read
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.1
         with:
           persist-credentials: false