[ci] Update 'actions/checkout''s version

Author: the-glu

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
         echo "Branch: ${{ github.ref }}"
         docker images
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
       with:
         submodules: true
     - name: Python lint
@@ -49,7 +49,7 @@ jobs:
         docker images
         go env
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
       with:
         submodules: true
     - name: Deployment infrastructure tests
@@ -97,7 +97,7 @@ jobs:
           docker images
           go env
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           submodules: true
       - name: Build dss image
@@ -128,7 +128,7 @@ jobs:
         echo "Branch: ${{ github.ref }}"
         docker images
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
       with:
         submodules: true
     - name: Tests
@@ -147,7 +147,7 @@ jobs:
         echo "Branch: ${{ github.ref }}"
         docker images
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v6
       with:
         submodules: true
     - name: Check migrations

.github/workflows/dev-checks.yml

@@ -9,20 +9,20 @@ jobs:
     name: Clone on Windows
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: Checkout on Windows
         run: echo "Project successfully cloned on ${{ runner.os }}. See `Set up Job` stage for more details about the Runner."
   macos:
     name: Clone on Mac
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: Checkout on Mac
         run: echo "Project successfully cloned on ${{ runner.os }}. See `Set up Job` stage for more details about the Runner."
   ubuntu:
     name: Clone on Ubuntu
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - name: Checkout on Ubuntu
-        run: echo "Project successfully cloned on ${{ runner.os }}. See `Set up Job` stage for more details about the Runner."
+        run: echo "Project successfully cloned on ${{ runner.os }}. See `Set up Job` stage for more details about the Runner."

.github/workflows/docs.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.repository == 'interuss/dss'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Configure Git Credentials

.github/workflows/dss-deploy.yml

@@ -23,7 +23,7 @@ jobs:
           echo "Branch: ${{ github.ref }}"
 
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/dss-publish.yml

@@ -37,7 +37,7 @@ jobs:
           cosign version
 
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0