Bump actions/checkout from 3 to 4 (#830)

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](https://github.com/actions/checkout/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/android-build.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 'Download Android Web.bundle Artifact (built frontend)'
         if: inputs.semver == ''  # Only if workflow fired from frontend-build.yml

.github/workflows/client-image.yml

@@ -19,7 +19,7 @@ jobs:
     name: 'Push Docker image to Docker Hub'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: 'Copy Static' # Needed since Github actions does not support symlinks
       run: cp -r frontend/static nodeapp/static

.github/workflows/codeql-client.yml

@@ -41,7 +41,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/codeql-coordinator.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/coordinator-image.yml

@@ -13,7 +13,7 @@ jobs:
     name: 'Push Docker image to Docker Hub'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: 'Download Basic main.js Artifact'
       if: inputs.semver == ''  # Only if workflow fired from frontend-build.yml

.github/workflows/django-test.yml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: 'Set up Python ${{ matrix.python-version }}'
       uses: actions/setup-python@v4
       with:

.github/workflows/frontend-build.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: 'Setup node'
       uses: actions/setup-node@v3
       with:

.github/workflows/js-linter.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 'Setup node'
         uses: actions/setup-node@v3

.github/workflows/lnproxy-sync.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Fetch and process lnproxy relay JSON file
         run: |

.github/workflows/py-linter.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
       semver: ${{ steps.validate.outputs.semver }}
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: 'Validate versions match (tag, backend, frontend, Android)'
       id: validate
       shell: bash
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Release
         id: create-release
         uses: softprops/action-gh-release@v1