[8.0] Fix getting ES configuration

[atsareg]

BEGINRELEASENOTES

*WorkloadManagement

FIX: get ElasticJobParametersDB index prefix from the configuration

*Configuration

FIX: evaluate useCRT flag as boolean in Utilities.getElasticDBParameters()

ENDRELEASENOTES

[DIRACGridBot]

Sweep summary

Sweep ran in https://github.com/DIRACGrid/DIRAC/actions/runs/13245644483

Failed:

• integration
  cherry-pick 554b37c into integration failed
  check merge conflicts on a local copy of this repository

  git fetch upstream
  git checkout upstream/integration -b cherry-pick-2-554b37c6e-integration
  git cherry-pick -x -m 1 554b37c6e
  # Fix the conflicts
  git cherry-pick --continue
  git commit --amend -m 'sweep: #8037 Fix getting ES configuration' --author='Andrei Tsaregorodtsev <atsareg@in2p3.fr>'
  git push -u origin cherry-pick-2-554b37c6e-integration
  
  # If you have the GitHub CLI installed the PR can be made with
  gh pr create \
       --label 'sweep:from rel-v8r0' \
       --base integration \
       --repo DIRACGrid/DIRAC \
       --title '[sweep:integration] Fix getting ES configuration' \
       --body 'Sweep #8037 `Fix getting ES configuration` to `integration`.
  
  Adding original author @atsareg as watcher.
  
  BEGINRELEASENOTES
  
  *WorkloadManagement
  
  FIX: get ElasticJobParametersDB index prefix from the configuration
  
  *Configuration
  
  FIX: evaluate useCRT flag as boolean in Utilities.getElasticDBParameters()
  
  ENDRELEASENOTES
  Closes #8038'