ci: upgrade release please and checkout

.github/workflows/release-please.yml

@@ -6,7 +6,7 @@ jobs:
     name: Linting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
@@ -30,7 +30,7 @@ jobs:
         os: ${{ fromJSON(vars.BUILD_OS)}}
         python-version: ${{ fromJSON(vars.PYTHON_VERSIONS)}}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v2
         with:
           python-version: ${{ matrix.python }}
@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-latest
     #needs: continuous-integration
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: |
           cp CHANGELOG.md docs/source/getting_started/CHANGELOG.md
           docker build . -t=lsdocs -f docs/Dockerfile 
@@ -65,7 +65,7 @@ jobs:
     needs: documentation-test
     if: github.ref == 'refs/heads/master'
     steps:
-      - uses: GoogleCloudPlatform/release-please-action@v3.5.0
+      - uses: GoogleCloudPlatform/release-please-action@4
         id: release
         with:
           release-type: python
@@ -79,7 +79,7 @@ jobs:
     needs: release-please
     if: ${{ needs.release-please.outputs.release_created }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: |
           cp CHANGELOG.md docs/source/getting_started/CHANGELOG.md
           docker build . -t=lsdocs -f docs/Dockerfile 
@@ -105,7 +105,7 @@ jobs:
           auto-update-conda: true
           python-version: ${{ matrix.python-version }}
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: update submodules
         #       shell: bash -l {0}
         run: |
@@ -130,7 +130,7 @@ jobs:
     name: Make SDist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Build SDist
         run: |