Remove fetch-depth: 0 from CI checkout

After reading the documentation for 2 seconds, it turns out that we
actually wanted `fetch-depth: 1`, and coincidentally, that's the
default.

.github.example/workflows/build.yml

@@ -18,11 +18,10 @@ jobs:
         version: [GAMEID]
 
     steps:
-    # Checkout the repository (shallow clone)
+    # Checkout the repository
     - name: Checkout
       uses: actions/checkout@v4
       with:
-        fetch-depth: 0
         submodules: recursive
 
     # Set Git config