build(deps): 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](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>

Author: dependabot[bot]

.github/workflows/check.yaml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install toolchain
         run: |
@@ -39,7 +39,7 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install toolchain
         run: |
@@ -84,7 +84,7 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install toolchain
         run: |
@@ -115,7 +115,7 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install toolchain
         run: |
@@ -152,7 +152,7 @@ jobs:
 
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install toolchain
         run: |

.github/workflows/release-plz.yml

@@ -16,7 +16,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           token: ${{ secrets.RELEASE_PLZ_TOKEN }}
@@ -45,7 +45,7 @@ jobs:
       cancel-in-progress: false
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           token: ${{ secrets.RELEASE_PLZ_TOKEN }}