CI: auto-fix hostname resolution for sudo

.forgejo/workflows/deploy.yml

@@ -87,6 +87,35 @@ jobs:
               exit 1
             fi
 
+            HOSTNAME_SHORT=\"$(hostname)\"
+            if ! getent hosts \"$HOSTNAME_SHORT\" >/dev/null 2>&1; then
+              sudo -n /usr/bin/python3 - <<'PY'
+            import os
+            from pathlib import Path
+
+            hostname = os.popen("hostname").read().strip()
+            hosts_path = Path("/etc/hosts")
+
+            text = hosts_path.read_text(encoding="utf-8") if hosts_path.exists() else ""
+            lines = text.splitlines()
+
+            def has_hostname() -> bool:
+                for line in lines:
+                    s = line.strip()
+                    if not s or s.startswith("#"):
+                        continue
+                    if hostname in s.split():
+                        return True
+                return False
+
+            if not has_hostname():
+                if text and not text.endswith("\n"):
+                    text += "\n"
+                text += f"127.0.1.1 {hostname}\n"
+                hosts_path.write_text(text, encoding="utf-8")
+            PY
+            fi
+
             sudo -n mkdir -p /opt/infra-controller /etc/infra-controller /var/lib/infra-controller /var/log/infra-controller
 
             if [ ! -d /opt/infra-controller/.git ]; then