Add AWS STS SDK dependency for IRSA support

- Enables Web Identity Token authentication for S3 storage
- Fixes 'sts service module must be on the class path' error
- Required for IAM Roles for Service Accounts (IRSA) integration

Author: achdmbp

server/build.gradle

@@ -101,6 +101,7 @@ dependencies {
     implementation "com.google.cloud:google-cloud-storage:${versions.gcloud}"
     implementation "com.azure:azure-storage-blob:${versions.azure}"
     implementation "software.amazon.awssdk:s3:${versions.aws}"
+    implementation "software.amazon.awssdk:sts:${versions.aws}"
     implementation "org.springdoc:springdoc-openapi-starter-webmvc-ui:${versions.springdoc}"
     implementation "com.fasterxml.jackson.core:jackson-core:${versions.jackson}"
     implementation "com.fasterxml.jackson.core:jackson-annotations:${versions.jackson}"