Bump actions/checkout from 5 to 6 (#23)

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

Author: dependabot[bot]

.github/workflows/deploy.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       ### MkDocs
       - name: Setup Python
         uses: actions/setup-python@v6

.github/workflows/php.yml

@@ -16,7 +16,7 @@ jobs:
           php-version: '7.4'
           extensions: xml
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       -   name: Validate composer config
           run: composer validate --strict
@@ -53,7 +53,7 @@ jobs:
                 php-version: ${{ matrix.php }}
                 extensions: xml
 
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
 
         -   name: Composer Install
             run: composer install --ansi --prefer-dist --no-interaction --no-progress
@@ -85,7 +85,7 @@ jobs:
               extensions: xml
               coverage: ${{ (matrix.php == '8.1') && 'xdebug' || 'none' }}
 
-      -   uses: actions/checkout@v5
+      -   uses: actions/checkout@v6
 
       -   name: Install dependencies
           run: composer install --ansi --prefer-dist --no-interaction --no-progress
@@ -111,7 +111,7 @@ jobs:
     name: Roave Backwards Compatibility Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: "Check for BC breaks"

docs/changes/0.4.0.md

@@ -11,4 +11,5 @@
 ## Miscellaneous
 
 - Bump actions/setup-python from 5 to 6 by [@dependabot](https://github/dependabot) in [#22](https://github.com/PHPOffice/Math/pull/22)
-- Bump actions/checkout from 4 to 5 by [@dependabot](https://github/dependabot) in [#21](https://github.com/PHPOffice/Math/pull/21)
+- Bump actions/checkout from 4 to 5 by [@dependabot](https://github/dependabot) in [#21](https://github.com/PHPOffice/Math/pull/21)
+- Bump actions/checkout from 5 to 6 by [@dependabot](https://github/dependabot) in [#23](https://github.com/PHPOffice/Math/pull/23)