[Core] Use canonical file name to create FileOutputStream for plugins

[violplayer]

#2108

Describe the solution you have implemented
Variables file and canonicalFile should be the file on the file system. Native code throws Exception when opening file.
canonicalFile is possible.

[codecov]

Codecov Report

Merging #2482 (4d389cf) into main (3ae4f02) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##               main    #2482   +/-   ##
=========================================
  Coverage     83.70%   83.70%           
  Complexity     2677     2677           
=========================================
  Files           319      319           
  Lines          9438     9438           
  Branches        916      916           
=========================================
  Hits           7900     7900           
  Misses         1201     1201           
  Partials        337      337           

Impacted Files	Coverage Δ
...in/java/io/cucumber/core/plugin/PluginFactory.java	74.46% <100.00%> (ø)

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[aslakhellesoy]

Hi @violplayer,

Thanks for your making your first contribution to Cucumber, and welcome to the Cucumber committers team! You can now push directly to this repo and all other repos under the cucumber organization! 🍾

In return for this generous offer we hope you will:

• ✅ Continue to use branches and pull requests. When someone on the core team approves a pull request (yours or someone else's), you're welcome to merge it yourself.
• 💚 Commit to setting a good example by following and upholding our code of conduct in your interactions with other collaborators and users.
• 💬 Join the community Slack channel to meet the rest of the team and make yourself at home.
• ℹ️ Don't feel obliged to help, just do what you can if you have the time and the energy.
• 🙋 Ask if you need anything. We're looking for feedback about how to make the project more welcoming, so please tell us!

On behalf of the Cucumber core team,
Aslak Hellesøy
Creator of Cucumber