Update Developer guide with steps to run BWC Test Suite#531

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navneet1v merged 4 commits intoopensearch-project:mainfrom vibrantvarun:Dev_guide

Jan 6, 2024

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Commits on Jan 2, 2024

Adding information on BWC tests in Developer guide
vibrantvarun
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Commits on Jan 3, 2024

Commits on Jan 5, 2024

Add spotlessApply in ./gradlew build
vibrantvarun
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