Remove deleted flag from test command (#5192)

Longevity tests run using the latest release of corso. Since we
recently made a release that contains the removal of this flag we need
to update the github action

---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [x] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup


#### Test Plan

- [ ] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

.github/workflows/longevity_test.yml

@@ -113,7 +113,6 @@ jobs:
             --extend-retention \
             --prefix ${{ env.PREFIX }} \
             --bucket ${{ secrets.CI_RETENTION_TESTS_S3_BUCKET }} \
-            --succeed-if-exists \
             2>&1 | tee ${{ env.CORSO_LOG_DIR }}/gotest-repo-init.log
 
           if  grep -q 'Failed to' ${{ env.CORSO_LOG_DIR }}/gotest-repo-init.log