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>

Author: dependabot[bot]

.github/workflows/action.yml

@@ -16,7 +16,7 @@ jobs:
         python-version: ["3.10", "3.11"]
     steps:
       - name: Checkout satellite6-upgrade
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set Up Python-${{ matrix.python-version }}
         uses: actions/setup-python@v4

.github/workflows/merge_to_master.yaml

@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.10", "3.11"]
     steps:
       - name: Checkout satellite6-upgrade
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set Up Python-${{ matrix.python-version }}
         uses: actions/setup-python@v4
@@ -49,7 +49,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get image tag
         id: image_tag