gh(deps): 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/asv.yaml

@@ -32,7 +32,7 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set VIRTUAL_ENV
       run: |
@@ -57,7 +57,7 @@ jobs:
         asv run -v --show-stderr --config benchmarks/regression/asv.conf.json --cpu-affinity 0-7 --machine i7-6700K
 
     - name: Checkout asv-results branch
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         ref: asv-results
         clean: false

.github/workflows/docker-bases.yaml

@@ -60,7 +60,7 @@ jobs:
 
     steps:
       - name: Checkout devito
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Check event name
         run: echo ${{ github.event_name }}
@@ -131,7 +131,7 @@ jobs:
 
     steps:
       - name: Checkout devito
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Check event name
         run: echo ${{ github.event_name }}
@@ -209,7 +209,7 @@ jobs:
 
     steps:
       - name: Checkout devito
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Check event name
         run: echo ${{ github.event_name }}
@@ -313,7 +313,7 @@ jobs:
 
     steps:
       - name: Checkout devito
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Check event name
         run: echo ${{ github.event_name }}

.github/workflows/docker-devito.yaml

@@ -109,7 +109,7 @@ jobs:
 
     steps:
       - name: Checkout devito
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set per‑runner variables
         run: |

.github/workflows/examples-mpi.yaml

@@ -47,7 +47,7 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set up Python
       uses: actions/setup-python@v6

.github/workflows/examples.yaml

@@ -36,10 +36,10 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Checkout data
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
        repository: 'devitocodes/data'
        path: 'data'

.github/workflows/lint.yaml

@@ -20,7 +20,7 @@ jobs:
     name: "Lint the codebase"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
@@ -46,7 +46,7 @@ jobs:
     name: "Spellcheck everything"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
@@ -68,7 +68,7 @@ jobs:
     # #example-error-annotation-on-github-actions
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Check workflow files
         uses: docker://rhysd/actionlint:latest
         with:
@@ -82,7 +82,7 @@ jobs:
       env:
         HADOLINT_IGNORE: "DL3003,DL3004,DL3005,DL3007,DL3008,DL3009,DL3013,DL3015,DL3042,DL3059,SC2103,SC2046,SC2086"
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Lint dockerfiles inside hadolint container
         run: |
           for DOCKERFILE in docker/Dockerfile.*; \

.github/workflows/pytest-core-mpi.yaml

@@ -36,7 +36,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Install dependencies
       run: |
@@ -95,7 +95,7 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - id: build
       name: Build docker image

.github/workflows/pytest-core-nompi.yaml

@@ -113,7 +113,7 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
@@ -227,7 +227,7 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - id: build
       name: Build docker image

.github/workflows/pytest-gpu.yaml

@@ -66,7 +66,7 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - id: build
       name: Build docker image

.github/workflows/pythonpublish.yaml

@@ -11,7 +11,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - name: Set up Python
       uses: actions/setup-python@v6
       with: