Bump software.amazon.awssdk:auth in /performance-test (opensearch-project#6315)

Bumps software.amazon.awssdk:auth from 2.32.13 to 2.39.5.

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:auth
  dependency-version: 2.39.5
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Signed-off-by: Nathan Wand <wandna@amazon.com>

Author: dependabot[bot]

performance-test/build.gradle

@@ -16,7 +16,7 @@ configurations.all {
 group 'org.opensearch.dataprepper.test.performance'
 
 dependencies {
-    gatlingImplementation 'software.amazon.awssdk:auth:2.32.13'
+    gatlingImplementation 'software.amazon.awssdk:auth:2.39.5'
     implementation 'com.fasterxml.jackson.core:jackson-core'
     testRuntimeOnly testLibs.junit.engine