Increase nightly test timeout from 15m to 1h (#4042)

<!-- PR description-->

We are seeing timeouts with 15m. Given these are nightly tests, it's safe to increase timeouts to 1hr.


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#### 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
- [x] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

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* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

.github/workflows/nightly_test.yml

@@ -103,7 +103,7 @@ jobs:
           -v            \
           -failfast     \
           -p 1          \
-          -timeout 15m  \
+          -timeout 1h  \
           ./... 2>&1 | tee ./testlog/gotest-nightly.log | gotestfmt -hide successful-tests
 
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