Update dependency software.amazon.awssdk:bom to v2.18.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
software.amazon.awssdk:bom (source)	2.18.7 -> 2.18.8

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Release Notes

aws/aws-sdk-java-v2

### [`v2.18.8`](https://togithub.com/aws/aws-sdk-java-v2/blob/HEAD/CHANGELOG.md#​2188-2022-11-01) [Compare Source](https://togithub.com/aws/aws-sdk-java-v2/compare/2.18.7...2.18.8) #### **Amazon Relational Database Service** - ### Features - Relational Database Service - This release adds support for configuring Storage Throughput on RDS database instances. #### **Amazon Textract** - ### Features - Add ocr results in AnalyzeIDResponse as blocks

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Configuration

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