Upgrade test dependencies

Author: Djuuu

.github/workflows/test.yml

@@ -12,10 +12,10 @@ jobs:
       - name: Setup BATS
         uses: mig4/setup-bats@v1
         with:
-          bats-version: 1.8.2
+          bats-version: 1.11.0
 
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: recursive