Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...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] <[email protected]>

Author: dependabot[bot]

.github/workflows/codespell.yml

@@ -8,7 +8,7 @@ jobs:
     name: Check for spelling errors
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: codespell-project/actions-codespell@master
         with:
           check_filenames: true

.github/workflows/windows.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           go-version: ${{ matrix.go-version }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Build
         shell: powershell
         run: |
@@ -60,7 +60,7 @@ jobs:
         with:
           go-version: ${{ matrix.go }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Run Windows Unit Tests
         run: |
           make all
@@ -85,7 +85,7 @@ jobs:
           curl -LO $PB_REL/download/v3.15.8/protoc-3.15.8-linux-x86_64.zip
           unzip protoc-3.15.8-linux-x86_64.zip -d $HOME/.local
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: go/src/github.com/kubernetes-csi/csi-proxy