ci: make checkout clone submodules

Author: altwine

.github/workflows/build-and-test.yml

@@ -12,7 +12,10 @@ jobs:
         runs-on: windows-latest
 
         steps:
-            - uses: actions/checkout@v4
+            - name: Checkout repo and submodules
+              uses: actions/checkout@v4
+              with:
+                  submodules: recursive
 
             - name: Setup Odin
               uses: laytan/setup-odin@v2.12.1