fix: add missing env vars to oci-image build
This adds the env vars that were previously set in the Dockerfile
bofore switching to nix. Without this fix, upgrading to the new image requires explicitly setting CONDUIT_CONFIG=""
which was not required before.
https://gitlab.com/famedly/conduit/-/blob/master/Dockerfile?ref_type=heads#L89
-
I agree to release my code and all other changes of this MR under the Apache-2.0 license