ci: improve build and package step in release workflow

- Merge build and package steps into single step
- Use export for pkg-config vars to share between commands
- Add comment about Cross.toml passthrough
- Simplify build step comments for clarity

.github/workflows/release.yml

@@ -88,29 +88,31 @@ jobs:
       - name: Install cargo-deb
         run: cargo install cargo-deb
 
-      - name: Build
+      - name: Build and package
         env:
           PKG_CONFIG_ALLOW_CROSS: "1"
         run: |
           if [ "${{ matrix.target }}" = "x86_64-unknown-linux-gnu" ]; then
-            # Native build uses standard system paths
+            # Native build
             cargo build --release --target ${{ matrix.target }}
+            cargo deb --target ${{ matrix.target }}
           else
             # Cross compilation requires special paths
             if [ "${{ matrix.target }}" = "armv7-unknown-linux-gnueabihf" ]; then
               PKG_PATH="/usr/lib/arm-linux-gnueabihf/pkgconfig"
             elif [ "${{ matrix.target }}" = "aarch64-unknown-linux-gnu" ]; then
               PKG_PATH="/usr/lib/aarch64-linux-gnu/pkgconfig"
             fi
-            PKG_CONFIG_PATH="$PKG_PATH" \
-            PKG_CONFIG_SYSROOT_DIR="/usr" \
-            PKG_CONFIG_LIBDIR="$PKG_PATH" \
+
+            # Vars will be passed to both commands thanks to passthrough in Cross.toml
+            export PKG_CONFIG_PATH="$PKG_PATH"
+            export PKG_CONFIG_SYSROOT_DIR="/usr"
+            export PKG_CONFIG_LIBDIR="$PKG_PATH"
+
             cross build --release --target ${{ matrix.target }}
+            cargo deb --target ${{ matrix.target }}
           fi
 
-      - name: Build deb package
-        run: cargo deb --target ${{ matrix.target }}
-
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with: