Fix missing am_version jinja variable
{% set name = "lftp" %}
{% set version = "4.7.7" %}
{% set sha256 = "7bce216050094a1146ed05bed8fe5b3518224764ffe98884a848d44dc76fff8f" %}
+{% set am_version = "1.15" %}
package:
name: {{ name }}
