add required env var for tests

Author: nicktrn

.env.example

@@ -82,7 +82,7 @@ COORDINATOR_SECRET=coordinator-secret # generate the actual secret with `openssl
 
 # DEPOT_ORG_ID=<Depot org id>
 # DEPOT_TOKEN=<Depot org token>
-# DEPLOY_REGISTRY_HOST=${APP_ORIGIN} # This is the host that the deploy CLI will use to push images to the registry
+DEPLOY_REGISTRY_HOST=${APP_ORIGIN} # This is the host that the deploy CLI will use to push images to the registry
 # DEV_OTEL_EXPORTER_OTLP_ENDPOINT="http://0.0.0.0:4318"
 # These are needed for the object store (for handling large payloads/outputs)
 # OBJECT_STORE_BASE_URL="https://{bucket}.{accountId}.r2.cloudflarestorage.com"

.github/workflows/unit-tests-webapp.yml

@@ -86,6 +86,7 @@ jobs:
           SESSION_SECRET: "secret"
           MAGIC_LINK_SECRET: "secret"
           ENCRYPTION_KEY: "secret"
+          DEPLOY_REGISTRY_HOST: "docker.io"
 
       - name: Gather all reports
         if: ${{ !cancelled() }}