Bump actions/checkout from 3 to 4 (#349)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/deploy.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
     - name: clone ocs
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       # Fetch all history for all tags and branches
       with:
         fetch-depth: 0
@@ -67,7 +67,7 @@ jobs:
         python-version: 3.8
 
     - name: clone ocs
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: install build dependencies
       run: |

.github/workflows/develop.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
     - name: clone ocs
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       # Fetch all history for all tags and branches
       with:
         fetch-depth: 0
@@ -66,7 +66,7 @@ jobs:
         python-version: 3.8
 
     - name: clone ocs
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: install build dependencies
       run: |

.github/workflows/pytest.yml

@@ -30,7 +30,7 @@ jobs:
 
     # Install
     - name: clone ocs
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install ocs
       run: |