What issues does your PR fix?

• N/A

What does your PR do?

• Cast user-provided values with toString before passing to b64enc, preventing helm syntax errors if int-type values are passed when strings are expected.
  • NOTE: this is most likely to affect user/password values, as number-only values are possible:
    • externalDatabase.user
    • externalDatabase.password
    • externalRedis.password

Checklist

For all Pull Requests

• Commits are signed off
• Commits have semantic messages
• Documentation updated
• Passes ct linting

For releasing ONLY

• Chart.yaml version bumped
• CHANGELOG.md updated