GitHub: update actions/checkout to v4

Author: guggero

.github/workflows/main.yml

@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -68,7 +68,7 @@ jobs:
 
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -96,7 +96,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -132,7 +132,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -160,7 +160,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -190,7 +190,7 @@ jobs:
           - unit
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -210,7 +210,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -253,7 +253,7 @@ jobs:
     if: '!contains(github.event.pull_request.labels.*.name, ''no-changelog'')'
     steps:
       - name: git checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: release notes check
         run: scripts/check-release-notes.sh