[fix] code executor image tag reference for internal tags

[avimoondra]

helm template -f ~/retool-helm/charts/retool/values.yaml foo ~/retool-helm/charts/retool --set config.encryptionKey="foo" --set image.tag="release-3.39.0-a0b2a86" --set codeExecutor.enabled="false" --set workflows.enabled="false" | rg "kind: Deployment" -C 2

# Source: retool/templates/deployment_backend.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: foo-retool
--
# Source: retool/templates/deployment_jobs.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: foo-retool-jobs-runner

helm template -f ~/retool-helm/charts/retool/values.yaml foo ~/retool-helm/charts/retool --set config.encryptionKey="foo" --set image.tag="release-3.39.0-a0b2a86" --set codeExecutor.enabled="false" --set workflows.enabled="true" | rg "kind: Deployment" -C 2

# Source: retool/templates/deployment_backend.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: foo-retool
--
# Source: retool/templates/deployment_jobs.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: foo-retool-jobs-runner
--
# Source: retool/templates/deployment_workflows.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: foo-retool-workflow-backend
--
# Source: retool/templates/deployment_workflows_worker.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: foo-retool-workflow-worker