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] <[email protected]>

.github/workflows/copilot.yml

@@ -52,7 +52,7 @@ jobs:
     environment: ${{ inputs.environment || 'test' }}
     steps:
       - name: Git clone the repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get current date
         id: currentdatetime

.github/workflows/deploy.yml

@@ -69,7 +69,7 @@ jobs:
     environment: ${{ inputs.environment || 'test' }}
     steps:
     - name: Git clone the repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Get current date
       id: currentdatetime

.github/workflows/manual-dev-deploy.yml

@@ -10,7 +10,7 @@
         FLASK_ENV: dev
       steps:
         - name: checkout code
-          uses: actions/checkout@v3
+          uses: actions/checkout@v4
         - name: Set up Python
           uses: actions/setup-python@v4
           with: