update haloy config: use hostname for server, fix env var format

haloy.yml

@@ -1,10 +1,18 @@
 name: basedosdados
-server: 89.167.95.136
+server: haloy.datative.xn--2dk.digital
 domains:
   - domain: db.xn--2dk.xyz
 port: 8080
 env:
-  - HETZNER_S3_ENDPOINT
+  - name: HETZNER_S3_ENDPOINT
-  - AWS_ACCESS_KEY_ID
+    from:
-  - AWS_SECRET_ACCESS_KEY
+      env: HETZNER_S3_ENDPOINT
-  - BASIC_AUTH_HASH
+  - name: AWS_ACCESS_KEY_ID
+    from:
+      env: AWS_ACCESS_KEY_ID
+  - name: AWS_SECRET_ACCESS_KEY
+    from:
+      env: AWS_SECRET_ACCESS_KEY
+  - name: BASIC_AUTH_HASH
+    from:
+      env: BASIC_AUTH_HASH