chore(deps): update actions/checkout action to v4 (#2)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
             version: 'go.mod'
     steps:
       - name: Check out source code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Go
         uses: actions/setup-go@v3

.github/workflows/generate.yml

@@ -17,7 +17,7 @@ jobs:
             version: 'go.mod'
     steps:
       - name: Check out source code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Go
         uses: actions/setup-go@v3

.github/workflows/lint.yml

@@ -17,7 +17,7 @@ jobs:
             version: 'go.mod'
     steps:
       - name: Check out source code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Go
         uses: actions/setup-go@v3

.github/workflows/tidy.yml

@@ -17,7 +17,7 @@ jobs:
             version: 'go.mod'
     steps:
       - name: Check out source code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Go
         uses: actions/setup-go@v3