Bump software.amazon.awssdk:auth from 2.38.2 to 2.38.4

Bumps software.amazon.awssdk:auth from 2.38.2 to 2.38.4.

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:auth
  dependency-version: 2.38.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

spring-cloud-vault-config/pom.xml

@@ -138,7 +138,7 @@
 		<dependency>
 			<groupId>software.amazon.awssdk</groupId>
 			<artifactId>auth</artifactId>
-			<version>2.38.2</version>
+			<version>2.38.4</version>
 			<optional>true</optional>
 		</dependency>