Initialize vcpkg to have an unshallow repository

Signed-off-by: Julien Jerphanion <[email protected]>

Author: jjerphan

.github/workflows/build_steps.yml

@@ -70,7 +70,8 @@ jobs:
       - name: Checkout
         uses: actions/[email protected]
         with:
-          submodules: recursive # Just in case a dep has its own third-party deps
+          submodules: recursive
+          fetch-depth: 0  # Ensure full history for vcpkg
 
       - name: Configure sccache
         uses: mozilla-actions/[email protected]