Bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
 

.github/workflows/conda_build.yml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
 

.github/workflows/dispatch_pkgdown_build.yml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout main
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: main
 

.github/workflows/merge.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout main
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: main
 
@@ -41,7 +41,7 @@ jobs:
 
     steps:
       - name: Checkout main
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: main
 

.github/workflows/release.yml

@@ -32,7 +32,7 @@ jobs:
     if: ${{ github.event.inputs.commit }} == "auto"
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           token: ${{ secrets.CI_TOKEN }}
           fetch-depth: 0
@@ -82,7 +82,7 @@ jobs:
           fi
 
       - name: Checkout HEAD
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           ref: ${{ steps.determine-commit.outputs.commit }}
 

.github/workflows/update-documentation.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout pull request branch
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           token: ${{ secrets.CI_TOKEN }}
           fetch-depth: 0