fix: remove outdated env var from drone.yml

Seems to work fine now in CD on `main`

.drone.yml

@@ -6,7 +6,7 @@ steps:
     image: git.coopcloud.tech/coop-cloud/stack-ssh-deploy:latest
     settings:
       host: swarm-test.autonomic.zone
-      stack: {{ .Name }}
+      stack: navidrome
       generate_secrets: true
       purge: true
       deploy_key:
@@ -14,8 +14,8 @@ steps:
       networks:
         - proxy
     environment:
-      DOMAIN: {{ .Name }}.swarm-test.autonomic.zone
-      STACK_NAME: {{ .Name }}
+      DOMAIN: navidrome.swarm-test.autonomic.zone
+      STACK_NAME: navidrome
       LETS_ENCRYPT_ENV: production
       EXTRA_VOLUME: "/dev/null:/tmp/.dummy"
 trigger: