Use upload-artifact for mir.json and drop diff from spread task

Co-authored-by: Saviq <231077+Saviq@users.noreply.github.com>

Author: Copilot

.github/workflows/spread.yml

@@ -136,6 +136,14 @@ jobs:
         tools/make_release_tarball --skip-checks
         snap run spread-mir-ci.spread -reuse -v ${{ matrix.spread-task }}
 
+    - name: Upload Wayland Explorer JSON
+      if: endsWith(matrix['spread-task'], ':ubuntu')
+      uses: actions/upload-artifact@v4
+      with:
+        name: mir.json
+        path: ${{ env.SPREAD_PATH }}/spread/sbuild/mir.json
+        if-no-files-found: error
+
     - name: CCache stats
       run: cat ${CCACHE_DIR}/ccache.stats
 

spread/sbuild/task.yaml

@@ -177,8 +177,6 @@ execute: |
 
       cargo install wlprobe
 
-      git clone https://github.com/vially/wayland-explorer.git /tmp/wayland-explorer
-
       MIR_VERSION=$(dpkg-query -W -f='${Version}' libmiral-dev | sed 's/-.*//')
       MIR_JSON_OUTPUT="$SPREAD_PATH/$SPREAD_TASK/mir.json"
       export XDG_RUNTIME_DIR=/tmp MIR_VERSION MIR_JSON_OUTPUT PATH="$HOME/.cargo/bin:$PATH"
@@ -198,6 +196,4 @@ execute: |
 
     WLPROBE
 
-      diff /tmp/wayland-explorer/src/data/compositors/mir.json "$MIR_JSON_OUTPUT" || true
-
     fi