File permissions are set to 0640 in 0.0.14 gem

[dbason]

As the title states this seems to be a regression of the file permission issues. Unsure what's going as the Rakefile hasn't changed, but in a docker image with the gem installed it is unable to be used due to the permissions:

/usr/lib/ruby/gems/2.7.0/gems/fluent-plugin-detect-exceptions-0.0.14/lib/fluent/plugin $ ls -ltrh
total 24K
-rw-r-----    1 root     root        4.5K Oct  5 09:04 out_detect_exceptions.rb
-rw-r-----    1 root     root       12.6K Oct  5 09:04 exception_detector.rb