Bump software.amazon.awssdk:bom from 2.19.11 to 2.19.12 in /java (aws-observability#404)

Bumps [software.amazon.awssdk:bom](https://github.com/aws/aws-sdk-java-v2) from 2.19.11 to 2.19.12.
- [Release notes](https://github.com/aws/aws-sdk-java-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-java-v2/blob/master/docs/LaunchChangelog.md)
- [Commits](aws/aws-sdk-java-v2@2.19.11...2.19.12)

---
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>

Author: dependabot[bot]

java/dependencyManagement/build.gradle.kts

@@ -11,7 +11,7 @@ data class DependencySet(val group: String, val version: String, val modules: Li
 val DEPENDENCY_BOMS = listOf(
     "io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:1.21.0-alpha",
     "org.apache.logging.log4j:log4j-bom:2.19.0",
-    "software.amazon.awssdk:bom:2.19.11"
+    "software.amazon.awssdk:bom:2.19.12"
 )
 
 val DEPENDENCIES = listOf(