Merge pull request #85 from pine64/dependabot/github_actions/actions/upload-artifact-4

chore(ci): bump actions/upload-artifact from 3 to 4

Author: Ralim

.github/workflows/build-firmware.yml

@@ -12,6 +12,6 @@ jobs:
         run: cd /usr/src/ && ./build.sh || cat /usr/src/log.txt
 
       - name: Archive produced firmware
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: /usr/src/out/open_source/open_source.bin