Add support for property placeholder in expireAfter for MongoDB indexes

[sangbeenmoon]

Enables property placeholder resolution (e.g., ${ttl.timeout}) in the @Indexed(expireAfter) attribute by replacing EvaluationContext with ValueEvaluationContext throughout the index resolution pipeline.

• MongoPersistentEntityIndexResolver : Updated to use ValueEvaluationContext instead of EvaluationContext for evaluating index expressions
• ExpressionUtils : Modified evaluate method signature to accept Supplier to support property placeholder resolution

Resolves : spring-projects#4980

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