Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

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

.github/workflows/faqtory.yml

@@ -9,7 +9,7 @@ jobs:
     permissions:
       issues: write
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: main
     - name: Install FAQtory

.github/workflows/run_tests_cli.yml

@@ -38,7 +38,7 @@ jobs:
         python-version: '3.10'
 
     - name: Clone bidspm
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0

.github/workflows/run_tests_notebooks.yml

@@ -36,7 +36,7 @@ jobs:
         release: R2023a
 
     - name: Clone bidspm
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0

.github/workflows/tests.yml

@@ -93,7 +93,7 @@ jobs:
         pip install datalad
 
     - name: Clone bidspm
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0

.github/workflows/tests_octave.yml

@@ -74,7 +74,7 @@ jobs:
         python-version: '3.11'
 
     - name: Clone bidspm
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0

.github/workflows/tests_windows.yml

@@ -72,7 +72,7 @@ jobs:
         python-version: '3.11'
 
     - name: Clone bidspm
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
         fetch-depth: 0

.github/workflows/validation.yml

@@ -16,7 +16,7 @@ jobs:
   validate_cff:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Check whether the citation metadata from CITATION.cff is valid
       uses: citation-file-format/cffconvert-github-action@2.0.0
       with: