[ci] Update GitHub Actions to latest major release

Fix warning that Node.js 20 is disconinued in June

.github/workflows/linux-other-builds.yml

@@ -75,7 +75,7 @@ jobs:
 
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Prepare environment
       run: |
@@ -100,7 +100,7 @@ jobs:
     name: clang-tidy
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Prepare environment
       run: |