test(parity): align fixture supervisor provenance (#3387)

The deterministic fixture still modeled Alpine after the supervisor image
switched to Debian, causing the wrapper to exit before producing parity
evidence. Update its image expectations and launch evidence to match the
current harness contract.

Force the intentional replacement of the read-only staged artifact so BSD mv
does not prompt when the deterministic parity test runs from a terminal.

Signed-off-by: Kris Hicks <khicks@nvidia.com>

Author: krishicks

e2e/parity/test.sh

@@ -301,7 +301,7 @@ if [ "${OPENSHELL_PARITY_TEST_MUTATE_ARTIFACT:-}" = "${OPENSHELL_PARITY_VARIANT}
   replacement="${OPENSHELL_GATEWAY_BIN}.replacement"
   printf '#!/usr/bin/env bash\nexit 0\n# mutated\n' >"${replacement}"
   chmod 0555 "${replacement}"
-  mv "${replacement}" "${OPENSHELL_GATEWAY_BIN}"
+  mv -f "${replacement}" "${OPENSHELL_GATEWAY_BIN}"
 fi
 if [ "${OPENSHELL_E2E_PODMAN_OPTION_PROFILE:-}" = podman-options ]; then
   case "${OPENSHELL_PARITY_VARIANT}" in baseline) pids=2048 ;; candidate) pids=31 ;; esac