Bump actions/checkout from 5 to 6 (#59)

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -34,7 +34,7 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # Need to fetch more than the last commit so that setuptools-scm can
           # create the correct version string. If the number of commits since
@@ -96,7 +96,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       # Fetch the built docs from the "build" job
       - name: Download HTML documentation artifact
@@ -106,7 +106,7 @@ jobs:
           path: doc/_build/
 
       - name: Checkout the gh-pages branch in a separate folder
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages
           # Checkout to this folder instead of the current one

.github/workflows/pypi.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # Need to fetch more than the last commit so that setuptools_scm can
           # create the correct version string. If the number of commits since
@@ -89,7 +89,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # The GitHub token is preserved by default but this job doesn't need
           # to be able to push to GitHub.

.github/workflows/style.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/test.yml

@@ -57,7 +57,7 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # Need to fetch more than the last commit so that setuptools-scm can
           # create the correct version string. If the number of commits since