This moves the major chunk of sanity testing code (backup -> restore
-> verify -> list -> list backup) into a separate action and use that
in the primary test instead of repeating the same thing over and over.
Successful run: https://github.com/alcionai/corso/actions/runs/4980277816/jobs/8912982952
---
#### 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
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- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [x] 🧹 Tech Debt/Cleanup
#### Issue(s)
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* #<issue>
#### Test Plan
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- [ ] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E
