ci: use cargo test --no-run for build step

This ensures test binaries are built with the test profile,
matching what the test step needs. Avoids recompilation.

Author: xdustinface

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

@@ -30,8 +30,8 @@ jobs:
         with:
           shared-key: "${{ steps.cache-week.outputs.week }}-${{ inputs.os }}"
           cache-on-failure: true
-      - name: Build workspace
-        run: cargo build --workspace --all-targets --all-features ${{ inputs.exclude-crates && format('--exclude {0}', inputs.exclude-crates) || '' }}
+      - name: Build workspace (including test binaries)
+        run: cargo test --workspace --all-features --no-run ${{ inputs.exclude-crates && format('--exclude {0}', inputs.exclude-crates) || '' }}
 
   test:
     name: "test: ${{ matrix.group }} (${{ inputs.os }})"