Bump aws-java-sdk-core from 1.11.627 to 1.11.838

Bumps [aws-java-sdk-core](https://github.com/aws/aws-sdk-java) from 1.11.627 to 1.11.838.
- [Release notes](https://github.com/aws/aws-sdk-java/releases)
- [Changelog](https://github.com/aws/aws-sdk-java/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-java/compare/1.11.627...1.11.838)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

See gh-434.

spring-cloud-vault-config/pom.xml

@@ -108,7 +108,7 @@
 			<groupId>com.amazonaws</groupId>
 			<artifactId>aws-java-sdk-core</artifactId>
 			<optional>true</optional>
-			<version>1.11.627</version>
+			<version>1.11.838</version>
 			<exclusions>
 				<exclusion>
 					<groupId>software.amazon.ion</groupId>