Bump software.amazon.glue:schema-registry-serde from 1.1.15 to 1.1.18

Bumps [software.amazon.glue:schema-registry-serde](https://github.com/awslabs/aws-glue-schema-registry) from 1.1.15 to 1.1.18.
- [Release notes](https://github.com/awslabs/aws-glue-schema-registry/releases)
- [Changelog](https://github.com/awslabs/aws-glue-schema-registry/blob/master/CHANGELOG.md)
- [Commits](awslabs/aws-glue-schema-registry@v.1.1.15...v1.1.18)

---
updated-dependencies:
- dependency-name: software.amazon.glue:schema-registry-serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

data-prepper-plugins/kafka-plugins/build.gradle

@@ -42,7 +42,7 @@ dependencies {
     implementation 'software.amazon.awssdk:kafka'
     implementation 'software.amazon.awssdk:kms'
     implementation 'software.amazon.msk:aws-msk-iam-auth:2.0.3'
-    implementation 'software.amazon.glue:schema-registry-serde:1.1.15'
+    implementation 'software.amazon.glue:schema-registry-serde:1.1.18'
     implementation project(':data-prepper-plugins:failures-common')
     implementation 'com.github.java-json-tools:json-schema-validator:2.2.14'
     implementation 'commons-collections:commons-collections:3.2.2'