Bump software.amazon.awssdk:bom from 2.18.2 to 2.18.7 (#160)

Bumps [software.amazon.awssdk:bom](https://github.com/aws/aws-sdk-java-v2) from 2.18.2 to 2.18.7.
- [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@2.18.2...2.18.7)

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -24,7 +24,7 @@ dependencies {
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactive")
     testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test")
 
-    implementation(platform("software.amazon.awssdk:bom:2.18.2"))
+    implementation(platform("software.amazon.awssdk:bom:2.18.7"))
     implementation("software.amazon.awssdk:s3")
     testImplementation("software.amazon.awssdk:sts")