Use updated upload-artifact GH action

Author: seriyps

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
         run: rebar3 proper
 
       - name: Upload test logs artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: test_logs_otp-${{matrix.otp}}