Fix syntax error in importmap-rails 2.0.2 (unexpected ')')

[tipsyhipsy]

Description

This pull request fixes a syntax error in importmap-rails version 2.0.2 that caused the following error during application boot:

/usr/local/bundle/gems/importmap-rails-2.0.2/lib/importmap/map.rb:45: syntax error, unexpected ')'
...s_and_directories(entry_point:), resolver:).values
...                              ^

The issue was related to incorrect usage of parentheses in the map.rb file, which was preventing the application from starting properly. The parentheses have been corrected to resolve this error.

Changes

Corrected syntax in importmap/map.rb to fix the parentheses error.
Why this change is necessary: This bug prevented the application from starting, impacting users who rely on importmap-rails version 2.0.2. This fix ensures the application can boot without syntax errors.

[tagliala]

This is going to be addressed by d79dfbf, the shorthand syntax is available on Ruby >= 3.1.

https://rubygems.org/gems/importmap-rails/versions/2.0.2 is unfortunately requiring Ruby >= 2.7.0 and the CI is not reporting this kind of failures.

Is this the only problem with Ruby 2.7 and 3.0?

[jhawthorn]

Thanks for the PR but there are other locations which have 2.7 incompatible syntax. 🤞 Hopefully this is fixed in 2.0.3