Fix oauth yaml config

[yycptt]

What changed?

• Fix oauth yaml config

Why?
Without the change, service start will fail due to invalid config. Since development_oauth.yaml will be deep merged with development.yaml and cause archival config to be invalid.

➜  cadence (fix-oauth-config) ✗ ./cadence-server --zone oauth start
2021/08/13 15:17:20 Loading config; env=development,zone=oauth,configDir=./config
2021/08/13 15:17:20 Loading configFiles=[./config/base.yaml ./config/development.yaml ./config/development_oauth.yaml]
2021/08/13 15:17:20 config validation failed: Invalid history archival config

How did you test it?
Tested locally. With the change, server can pass the config validation phase.

Potential risks

Release notes

Documentation Changes

[coveralls]

Pull Request Test Coverage Report for Build 6bf377a5-cc8f-4567-8dee-3c25544cf4b2

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 53 unchanged lines in 7 files lost coverage.
• Overall coverage decreased (-0.006%) to 56.301%

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Files with Coverage Reduction	New Missed Lines	%
common/task/weightedRoundRobinTaskScheduler.go	1	89.64%
common/persistence/executionManager.go	2	75.5%
common/persistence/statsComputer.go	2	95.71%
common/persistence/nosql/nosqlExecutionStore.go	9	57.52%
service/history/shard/context.go	9	65.23%
service/history/execution/context.go	14	66.93%
common/persistence/sql/sqlExecutionStore.go	16	60.0%

Totals
Change from base Build 2300446c-8199-4efd-8b4d-c649c07159cc:	-0.006%
Covered Lines:	78438
Relevant Lines:	139319

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💛 - Coveralls