⬆️(ci) update checkout actions

checkout@v2 uses node12 which will be deprecated soon.
I've aligned CI configurations to use a more recent action,
already in-use in the 'meet.yml' flow.

.github/workflows/deploy.yml

@@ -21,7 +21,7 @@ jobs:
           repositories: "meet,secrets"
       -
         name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ steps.app-token.outputs.token }}

.github/workflows/docker-hub.yml

@@ -28,7 +28,7 @@ jobs:
           repositories: "meet,secrets"
       -
         name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ steps.app-token.outputs.token }}
@@ -72,7 +72,7 @@ jobs:
           repositories: "meet,secrets"
       -
         name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ steps.app-token.outputs.token }}
@@ -122,7 +122,7 @@ jobs:
           repositories: "meet,secrets"
       -
         name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ steps.app-token.outputs.token }}

.github/workflows/meet.yml

@@ -14,7 +14,7 @@ jobs:
     if: github.event_name == 'pull_request' # Makes sense only for pull requests
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: show
@@ -77,7 +77,7 @@ jobs:
         working-directory: src/backend
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Install Python
         uses: actions/setup-python@v3
         with:
@@ -176,7 +176,7 @@ jobs:
           repositories: "infrastructure,secrets"
       -
         name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ steps.app-token.outputs.token }}