Upgrade GitHub checkout action to version 5

Author: stevenbenner

.github/workflows/run-tests.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js ${{matrix.node}}
         uses: actions/setup-node@v4