fix(scanner): bound SNSD deep scans and checkpoint cloning (#8126)

* fix(scanner): bound SNSD deep scans and checkpoint cloning

* ci: run mount-dependent jobs on hosted VMs

---------

Co-authored-by: hector <42570491+majinghe@users.noreply.github.com>

.github/workflows/ci.yml

@@ -690,7 +690,7 @@ jobs:
     # the probe succeeds and the tests exercise the real UringBackend/FdCache/
     # latch paths instead of the StdBackend fallback (rustfs/backlog#1179). The
     # self-hosted sm-standard runners cannot guarantee this.
-    runs-on: sm-standard-2
+    runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
       - name: Checkout repository

.github/workflows/e2e-s3tests.yml

@@ -146,7 +146,7 @@ jobs:
     # GitHub-hosted: reliably provides Docker + docker compose + python3/pip.
     # See the header note (ci-1) for why the self-hosted sm-standard-4 label
     # was abandoned. Scheduled failures are handled by alert-on-failure below.
-    runs-on: sm-standard-2
+    runs-on: ubuntu-latest
     timeout-minutes: 180
     strategy:
       fail-fast: false