fix(worker): revert URL-parsing from 0.0.42; bump to 0.0.43

[rajatoss]

Summary

Revert the URL-parsing logic introduced in #70 (chart 0.0.42). Chart 0.0.43 is functionally identical to 0.0.41 — only emits DATAHUB_GMS_URL. The proper fix for the original problem lives in the image, not the chart.

What 0.0.42 broke

PR #70 made the chart auto-derive and unconditionally export DATAHUB_GMS_HOST / PORT / PROTOCOL from gms.url. This broke the DataHub Python SDK in deployments with a path-prefixed URL.

The SDK's _get_config_from_env() has this branch:

if port is not None:
    url = f"{protocol}://{host}:{port}"   # <-- URL discarded, path lost
    return url, token

For gms.url: https://dev07.acryl.io/gms, the chart exported PORT=443, triggering this branch. The SDK reconstructed https://dev07.acryl.io:443 — losing the /gms path — which hit the frontend, not GMS.

Why we don't need the env vars at all

The original motivation for setting DATAHUB_GMS_HOST/PORT/PROTOCOL in chart 0.0.42 was to feed the image's wait_for_gms_ready startup readiness gate, which (in pr8856 / v1.1.0rc1) hardcoded datahub-gms as the host and failed DNS in namespaces with a Helm release prefix (e.g. dh-datahub-gms).

That bug has now been fixed at the image level:

• acryldata/datahub-fork#9666 — start.sh now reads DATAHUB_GMS_URL directly. (Merged to acryl-main.)
• acryldata/datahub-fork#9668 — backport to releases/v1.1.0. (Merged.)

Once the worker image carries that script change, both consumers in the pod (the startup script and the Python SDK) read DATAHUB_GMS_URL directly and need no other env vars. Exposing host/port/protocol in the chart adds surface area without functional benefit — and, as we just discovered, can actively break things.

What this PR does

• Reverts templates/workload.yaml to the 0.0.41 env block (only DATAHUB_GMS_URL is emitted).
• Bumps chart version 0.0.42 → 0.0.43.

Verified

helm template with default values → only DATAHUB_GMS_URL exported.
helm template with gms.host=... override → still only DATAHUB_GMS_URL exported (the override is ignored).