Create a data_prepper_test user in the end-to-end tests for Java. This way the .aws volume mapping will be able to load for both the release Docker image and the end-to-end test custom image. (#6188)

Signed-off-by: David Venable <dlv@amazon.com>

Author: dlvenable

e2e-test/build.gradle

@@ -66,9 +66,12 @@ subprojects {
         destFile = project.file('build/docker/Dockerfile')
 
         from(dataPrepperBaseImage)
+        runCommand('useradd -u 1012 -M -U -d / -s /sbin/nologin -c "Data Prepper Test" data_prepper_test')
         runCommand('mkdir -p /var/log/data-prepper')
         addFile(project(':release:archives:linux').tasks.getByName('linuxx64DistTar').archiveFileName.get(), '/usr/share')
         runCommand("mv /usr/share/${project(':release:archives:linux').tasks.getByName('linuxx64DistTar').archiveFileName.get().replace('.tar.gz', '')} /usr/share/data-prepper")
+        runCommand('chown -R 1012:1012 /usr/share/data-prepper /var/log/data-prepper')
+        user('data_prepper_test')
         workingDir('/usr/share/data-prepper')
         defaultCommand('bin/data-prepper')
     }