🌱 Bump actions/checkout from 3 to 4 (#464)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.

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

.github/workflows/ci_pipeline.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup python
         uses: actions/setup-python@v4
@@ -64,7 +64,7 @@ jobs:
              h5py==3.11.0
 
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: ${{ github.workspace }}/src/beluga
 
@@ -120,7 +120,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup python
         uses: actions/setup-python@v4
@@ -156,7 +156,7 @@ jobs:
     if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
     steps:
       - name: Checkout documentation branch
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: gh-pages
 

.github/workflows/docker_ci_pipeline.yml

@@ -28,7 +28,7 @@ jobs:
           - rolling
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2

.github/workflows/weekly_pipeline.yml

@@ -48,7 +48,7 @@ jobs:
              h5py==3.11.0
 
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: ${{ github.workspace }}/src/beluga