Fix indentation of dictionary initializers inside `if let` statements

Description

See `ShouldNotCastDictionaryValueToRawValueType` test
and https://github.com/Swiftify-Corp/Swiftify/issues/116

The dictionary element needs an extra indentation.

Environment

None

Assignee

Alex Petuschak

Reporter

Alex Petuschak

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Git Branch Name

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GitHub Issue

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Components

Fix versions

Priority

Lowest
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