[Core] Mark Allure 5 and 6 plugins as incompatible

[mpkorstanje]

🤔 What's changed?

This bans the use of the incompatible plugins

io.qameta.allure.cucumber5jvm.AllureCucumber5Jvm
io.qameta.allure.cucumber6jvm.AllureCucumber6Jvm

This will prevent users from making the mistake of using the wrong plugin
version with Cucumber. This avoids questions and noise all around.

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct
• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "Unreleased" section of the CHANGELOG, linking to this pull request.

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[codecov]

Codecov Report

Merging #2652 (4c8f130) into main (5cdd1c5) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 4c8f130 differs from pull request most recent head 8134be6. Consider uploading reports for the commit 8134be6 to get more accurate results

@@            Coverage Diff            @@
##               main    #2652   +/-   ##
=========================================
  Coverage     84.77%   84.77%           
  Complexity     2686     2686           
=========================================
  Files           322      322           
  Lines          9530     9532    +2     
  Branches        903      903           
=========================================
+ Hits           8079     8081    +2     
  Misses         1120     1120           
  Partials        331      331           

Impacted Files	Coverage Δ
...in/java/io/cucumber/core/options/PluginOption.java	91.86% <100.00%> (+0.19%)	⬆️

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