ci: follow up bump of checkout action

This patch follows up #9795 where bump of the version of the
`checkout` action was skipped for the etcd_integration.yml and
static_build_pack_test_deploy.yml workflows.

Follows up #9795

NO_DOC=ci
NO_TEST=ci
NO_CHANGELOG=ci

.github/workflows/etcd_integration.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Check out the etcd-client module
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.repository_owner }}/etcd-client
           token: ${{ secrets.PRIVATE_REPO_ACCESS_TOKEN }}

.github/workflows/static_build_pack_test_deploy.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Prepare checkout
         uses: tarantool/actions/prepare-checkout@master
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
           submodules: recursive
@@ -94,7 +94,7 @@ jobs:
       - name: Prepare checkout
         uses: tarantool/actions/prepare-checkout@master
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -181,7 +181,7 @@ jobs:
       - name: Prepare checkout
         uses: tarantool/actions/prepare-checkout@master
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0