use ZeroSSL fallback for git.database.pizza

Let's Encrypt's multi-perspective validators fail to resolve the host through Namecheap's authoritative DNS even though the record is correct and resolves everywhere else. Set the ACME account email so Caddy falls back to ZeroSSL, which issues successfully.

deploy/Caddyfile

@@ -65,7 +65,7 @@ import /home/pizzadatabase/testmarket/Caddyfile
 import /home/pizzadatabase/pizza-admin/Caddyfile
 
 git.database.pizza {
-	tls internal
+	tls admin@database.pizza
 	encode zstd gzip
 	header X-Content-Type-Options nosniff
 	reverse_proxy 127.0.0.1:3001