fix(ci): restore deployment release gates

scripts/test-external-llm-network-config.sh

@@ -3,7 +3,8 @@
 set -euo pipefail
 
 root="$(cd "$(dirname "$0")/.." && pwd -P)"
-tmp="$(mktemp -d "${TMPDIR%/}/thoth-external-llm.XXXXXX")"
+tmp_parent="${TMPDIR:-/tmp}"
+tmp="$(mktemp -d "${tmp_parent%/}/thoth-external-llm.XXXXXX")"
 trap 'rm -rf "$tmp"' EXIT HUP INT TERM
 printf '%s\n' '{}' >"$tmp/pi-auth.json"
 printf '%s\n' 'THT_MODEL_API_KEY=fixture-model-api-key' >"$tmp/thothii.secrets"