ci: clarify the name of a print logs job

that it runs only on failure

.github/workflows/ci.yml

@@ -33,6 +33,6 @@ jobs:
         run: cargo test --verbose --all
       - name: cargo xtask test
         run: cargo xtask test
-      - name: print logs
+      - name: print logs (on failure)
         run: cat test_log/*.log
         if: failure()