ci: fix patch test (#37079)

* ci: fix patch test

* ci: use v13 DB as starting point for patch

* ci: remove payments from patch test

* ci: print bench logs after tests

* ci: restart bench on each update

* ci: patch test v13db > v14 > develop

and when v15 is out v13db > v14 > v15 > develop
diff --git a/.github/workflows/server-tests-mariadb.yml b/.github/workflows/server-tests-mariadb.yml
index 2ce1125..559be06 100644
--- a/.github/workflows/server-tests-mariadb.yml
+++ b/.github/workflows/server-tests-mariadb.yml
@@ -123,6 +123,10 @@
           CI_BUILD_ID: ${{ github.run_id }}
           ORCHESTRATOR_URL: http://test-orchestrator.frappe.io
 
+      - name: Show bench output
+        if: ${{ always() }}
+        run: cat ~/frappe-bench/bench_start.log || true
+
       - name: Upload coverage data
         uses: actions/upload-artifact@v3
         with: