MAINT: bump actions/checkout from 3 to 4 (#212)

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.github/workflows/notebooks.yml

@@ -13,7 +13,7 @@ jobs:
     name: Test all notebooks
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/cache@v3
         with:
           key: |

.github/workflows/pr-linting.yml

@@ -27,6 +27,6 @@ jobs:
     name: Check title
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: npm install @commitlint/config-conventional
       - uses: JulienKode/pull-request-name-linter-action@v0.5.0