build(deps): bump aws.sdk.version from 2.18.7 to 2.18.8 (#968)

Bumps `aws.sdk.version` from 2.18.7 to 2.18.8.

Updates `software.amazon.awssdk:bom` from 2.18.7 to 2.18.8
- [Release notes](https://github.com/aws/aws-sdk-java-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-java-v2/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java-v2@2.18.7...2.18.8)

Updates `http-client-spi` from 2.18.7 to 2.18.8
- [Release notes](https://github.com/aws/aws-sdk-java-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-java-v2/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java-v2@2.18.7...2.18.8)

Updates `url-connection-client` from 2.18.7 to 2.18.8

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: software.amazon.awssdk:http-client-spi
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: software.amazon.awssdk:url-connection-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

pom.xml

@@ -58,7 +58,7 @@
         <log4j.version>2.19.0</log4j.version>
         <jackson.version>2.13.4.2</jackson.version>
         <aspectj.version>1.9.7</aspectj.version>
-        <aws.sdk.version>2.18.7</aws.sdk.version>
+        <aws.sdk.version>2.18.8</aws.sdk.version>
         <aws.xray.recorder.version>2.12.0</aws.xray.recorder.version>
         <payloadoffloading-common.version>2.1.2</payloadoffloading-common.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>