ci: bump actions/checkout to v4

Author: ffranr

.github/workflows/main.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: setup go ${{ env.GO_VERSION }}
         uses: actions/setup-go@v2
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: setup go ${{ env.GO_VERSION }}
         uses: actions/setup-go@v2
@@ -71,7 +71,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: setup go ${{ env.GO_VERSION }}
         uses: actions/setup-go@v2
@@ -89,7 +89,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -112,7 +112,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -132,7 +132,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: setup go ${{ env.GO_VERSION }}
         uses: actions/setup-go@v5