fix: add slbclient substrings for delfiserviceaccounts

Status Name Job ID Coverage
  Build
passed sdms_compile-and-unit-test #688151
osdu-medium

00:03:35

passed sdms_osdu-gcp-helm-charts #688152
osdu-small

00:00:06

 
  Scan
passed sdms_lint #688153
osdu-small

00:02:09

passed sdms_scan-for-secrets #688154
osdu-small

00:01:16