ci: fb-DEV-2304: add healthcheck for rqworker

[farioas]

Description of the change

Benefits

Possible drawbacks

Applicable issues

• fixes #

Additional information

Checklist

• Chart version bumped in Chart.yaml according to semver. This is not necessary when the changes only affect README.md files.
• Input Validation completed with values.schema.json.
• Variables are documented in the values.yaml and added to the README.md.
• Changelog updated to describe new changes/fixes.
• Title of the pull request follows this pattern [heartex/<name_of_the_chart>] Descriptive title