chore: CI: ensure cache reuse in update-stage0 (#10359)

.github/workflows/update-stage0.yml

@@ -21,6 +21,8 @@ jobs:
     runs-on: nscloud-ubuntu-22.04-amd64-8x16
     env:
       CCACHE_DIR: ${{ github.workspace }}/.ccache
+      CCACHE_COMPRESS: true
+      CCACHE_MAXSIZE: 400M
     steps:
     # This action should push to an otherwise protected branch, so it
     # uses a deploy key with write permissions, as suggested at
@@ -72,10 +74,14 @@ jobs:
         restore-keys: |
           Linux Lake-build-v3
     - if: env.should_update_stage0 == 'yes'
-      run: cmake --preset release
+      # sync options with `Linux Lake` to ensure cache reuse
+      run: |
+        mkdir -p build
+        cmake --preset release -B build -DLEAN_EXTRA_MAKE_OPTS=-DwarningAsError=true
       shell: 'nix develop -c bash -euxo pipefail {0}'
     - if: env.should_update_stage0 == 'yes'
-      run: make -j$NPROC -C build/release  update-stage0-commit
+      run: |
+        make -j$NPROC -C build update-stage0-commit
       shell: 'nix develop -c bash -euxo pipefail {0}'
     - if: env.should_update_stage0 == 'yes'
       run: git show --stat