Update fpm.toml

Author: perazz

example_packages/fpm_test_exit_code/fpm.toml

@@ -1,7 +1,7 @@
 name = "fpm_test_exit_code"
 version = "0.1.0"
 license = "license"
-author = "Jane Doe"
+author = "Federico Perini"
 maintainer = "[email protected]"
 copyright = "Copyright 2023, Jane Doe"
 [build]