Bolt - 3.27.3

(2023-10-05)

Bug fixes

• Only set ruby env vars for local transport when non empty strings
  (#3236)

Previously when using bundled-ruby=false for the local transport and
not expliclty setting ruby environment variables internal apply tasks
did not work due to ruby code not being able to be loaded. Now the local
transport only preserves ruby environment variables when they are set
to something other than an empty string.

Contributed by donoghuc