Update build.yml

Author: sfe-SparkFro

.github/workflows/build.yml

@@ -7,7 +7,8 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v4
+    - name: Checkout repository
+      uses: actions/checkout@v4
       with:
         submodules: true
     - name: Install packages
@@ -24,3 +25,8 @@ jobs:
       run: make -C src/opencv PLATFORM=embedded/rp2350 --no-print-directory
     - name: Build firmware
       run: make BOARD=SPARKFUN_XRP_CONTROLLER
+    - name: Upload UF2
+      uses: actions/upload-artifact@v4
+      with:
+        name: firmware.uf2
+        path: micropython/ports/rp2/build-SPARKFUN_XRP_CONTROLLER/firmware.uf2