Bump the backend-prod group across 2 directories with 2 updates

Bumps the backend-prod group with 2 updates in the / directory: software.amazon.awssdk:s3 and [org.codehaus.mojo:exec-maven-plugin](https://github.com/mojohaus/exec-maven-plugin).
Bumps the backend-prod group with 1 update in the /server directory: software.amazon.awssdk:s3.


Updates `software.amazon.awssdk:s3` from 2.34.4 to 2.34.6

Updates `org.codehaus.mojo:exec-maven-plugin` from 3.5.1 to 3.6.0
- [Release notes](https://github.com/mojohaus/exec-maven-plugin/releases)
- [Commits](mojohaus/exec-maven-plugin@3.5.1...3.6.0)

Updates `software.amazon.awssdk:s3` from 2.34.4 to 2.34.6

Updates `software.amazon.awssdk:s3` from 2.34.4 to 2.34.6

Updates `software.amazon.awssdk:s3` from 2.34.4 to 2.34.6

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:s3
  dependency-version: 2.34.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend-prod
- dependency-name: org.codehaus.mojo:exec-maven-plugin
  dependency-version: 3.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: backend-prod
- dependency-name: software.amazon.awssdk:s3
  dependency-version: 2.34.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend-prod
- dependency-name: software.amazon.awssdk:s3
  dependency-version: 2.34.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend-prod
- dependency-name: software.amazon.awssdk:s3
  dependency-version: 2.34.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend-prod
...

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

Author: dependabot[bot]

client/pom.xml

@@ -15,7 +15,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>exec-maven-plugin</artifactId>
-                <version>3.5.1</version>
+                <version>3.6.0</version>
                 <executions>
                     <execution>
                         <goals>

server/pom.xml

@@ -36,7 +36,7 @@
         <dependency>
             <groupId>software.amazon.awssdk</groupId>
             <artifactId>s3</artifactId>
-            <version>2.34.4</version>
+            <version>2.34.6</version>
         </dependency>
         <dependency>
             <groupId>org.opensaml</groupId>