chore(env): update MGMT_BACKEND_VERSION

[droplet-bot]

Because

• The version of the mgmt-backend service is not updated in the instill-core repository.

This commit

• updates the MGMT_BACKEND_VERSION in the .env file to e213190.
• updates the mgmtBackend.image.tag in the helm chart values.yaml file to e213190.

Changes in mgmt-backend

• refactor(service): remove organization and membership methods from CE interface (refactor(service): remove organization and membership methods from CE interface mgmt-backend#306)
• fix(handler): prevent namespace collision between dash and underscore variants (fix(handler): prevent namespace collision between dash and underscore variants mgmt-backend#305)
• fix(api): implement field mask validation for membership update endpoints (fix(api): implement field mask validation for membership update endpoints mgmt-backend#303)

---

Note

Aligns mgmt-backend version across local and Helm deployments.

• Updates .env MGMT_BACKEND_VERSION to e213190
• Updates charts/core/values.yaml mgmtBackend.image.tag to e213190

^{Written by Cursor Bugbot for commit 03c86a5. This will update automatically on new commits. Configure here.}