Bump software.amazon.msk:aws-msk-iam-auth from 2.3.2 to 2.3.4 (#23841)

Bumps [software.amazon.msk:aws-msk-iam-auth](https://github.com/aws/aws-msk-iam-auth) from 2.3.2 to 2.3.4.
- [Release notes](https://github.com/aws/aws-msk-iam-auth/releases)
- [Commits](aws/aws-msk-iam-auth@v2.3.2...v2.3.4)

---
updated-dependencies:
- dependency-name: software.amazon.msk:aws-msk-iam-auth
  dependency-version: 2.3.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

pom.xml

@@ -109,7 +109,7 @@
         <aws-java-sdk-1.version>1.12.675</aws-java-sdk-1.version>
         <aws-java-sdk-2.version>2.34.3</aws-java-sdk-2.version>
         <aws-kinesis-client.version>2.6.1</aws-kinesis-client.version>
-        <aws-msk-iam-auth.version>2.3.2</aws-msk-iam-auth.version>
+        <aws-msk-iam-auth.version>2.3.4</aws-msk-iam-auth.version>
         <!-- When bumping bouncycastle.version, check if the explicit management for bcutil-jdk18on can/must be removed. -->
         <bouncycastle.version>1.82</bouncycastle.version>
         <caffeine.version>3.2.2</caffeine.version>