TEST/MINOR: set_uid: fix the set_uid test

Author: mjuraga

.aspell.yml

@@ -40,3 +40,4 @@ allowed:
   - backport
   - dns
   - newcert
+  - uid

e2e/tests/set_uid/test.bats

@@ -24,8 +24,8 @@ setup() {
   run dpa_docker_exec 'pkill -9 dataplaneapi'
   assert_success
 
-  run dpa_docker_exec 'adduser -u 1500 testuiduser'
-  #assert_success ignore error since we do not plan to insert password, user will be created
+  run dpa_docker_exec 'useradd -m -p test -s /bin/bash -u 1500 testuiduser'
+  assert_success
 
   run docker cp "${BATS_TEST_DIRNAME}/dataplaneapi.yaml" "${DOCKER_CONTAINER_NAME}:/home/testuiduser/dataplaneapi.yaml"
   assert_success