[Sharing][TEST ONLY] Reformat DeltaFormatSharingSourceSuite (delta-io#3811)

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#### Which Delta project/connector is this regarding?
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- [ ] Spark
- [ ] Standalone
- [ ] Flink
- [ ] Kernel
- [x] Other (Sharing)

## Description

No actual code change, format only change.

## How was this patch tested?

Test only change.

## Does this PR introduce _any_ user-facing changes?

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Author: charlenelyu-db