ansible: add lib as application/octet-stream type (#3195)

Serve `.lib` files with `application/octet-stream` content-type.

Refs: #3194

Author: richardlau

ansible/www-standalone/tasks/nginx.yaml

@@ -84,6 +84,7 @@
     line: '{{ item }}'
     insertafter: '^types.*'
   with_items:
+    - 'application/octet-stream lib;'
     - 'application/octet-stream pkg;'
     - 'application/x-xz xz;'
     - 'application/gzip gz;'