Bump software.amazon.awssdk:netty-nio-client from 2.30.13 to 2.30.15 (#2284)

Bumps software.amazon.awssdk:netty-nio-client from 2.30.13 to 2.30.15.

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:netty-nio-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

spring-eg-content-s3-reactive/pom.xml

@@ -48,7 +48,7 @@
         <dependency>
             <artifactId>netty-nio-client</artifactId>
             <groupId>software.amazon.awssdk</groupId>
-            <version>2.30.13</version>
+            <version>2.30.15</version>
             <scope>compile</scope>
         </dependency>
         <!-- check whether we need these -->