Update actions/checkout@v2 to @v4

Signed-off-by: Jan Dubois <[email protected]>

Author: jandubois

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 60
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 1
         submodules: recursive