fix: add n into inputs

inputs

@@ -2,6 +2,7 @@
   "{{ project_name }}.sample_id": "{{ sample_id }}",
   "{{ project_name }}.fastq": "{{ fastq }}",
   "{{ project_name }}.p": "{{ p }}",
+  "{{ project_name }}.n": "{{ n }}",
   "{{ project_name }}.docker": "registry.cn-shanghai.aliyuncs.com/pgx-docker-registry/seqkit:0.12.0",
   "{{ project_name }}.cluster_config": "{{ cluster_config }}",
   "{{ project_name }}.disk_size": "{{ disk_size }}"