upgrade fpm

[anantshri]

v1.15.1

https://github.com/jordansissel/fpm/releases/tag/v1.15.1

• Ruby 3.2.0 now supported. This fixes error 'undefined method exists? for File' '(#1981, #1988; Nicholas Hubbard, romulasry)

via Release notes from fpm https://github.com/jordansissel/fpm/releases
February 01, 2023 at 09:20AM