### Describe the question/issue
Add possibility to specify Infrequent Access class for log group class (for cost saving purposes).
AWS blog: https://aws.amazon.com/blogs/aws/new-amazon-cloudwatch-log-class-for-infrequent-access-logs-at-a-reduced-price/
### Configuration
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### Fluent Bit Log Output
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### Fluent Bit Version Info
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### Cluster Details
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### Application Details
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### Steps to reproduce issue
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### Related Issues
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