Bump actions/checkout from 3 to 4 (#75)

.github/workflows/docker-jepsen.yml

@@ -19,7 +19,7 @@ jobs:
         id: go
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get dependencies
         run: |

.github/workflows/docker-tests-8.0.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Docker images caching
         id: cache-images
@@ -72,7 +72,7 @@ jobs:
         id: go
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get dependencies
         run: |

.github/workflows/docker-tests.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Docker images caching
         id: cache-images
@@ -71,7 +71,7 @@ jobs:
         id: go
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get dependencies
         run: |

.github/workflows/golangci-lint.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/setup-go@v3
         with:
           go-version: 1.21.3
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:

.github/workflows/unit-tests.yml

@@ -22,7 +22,7 @@ jobs:
         id: go
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get dependencies
         run: |