Add upgrade note for Symfony+Translatable setup

[mellowgrab]

A little time saver for those who are migrating their Symfony v4 projects to a newer versions

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[phansys]

Forcing new CI pipeline.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.70%. Comparing base (971dd18) to head (2095936). Report is 115 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2585      +/-   ##
============================================
+ Coverage     79.96%   82.70%   +2.73%     
  Complexity     3121     3121              
============================================
  Files           159      161       +2     
  Lines          8181    11278    +3097     
============================================
+ Hits           6542     9327    +2785     
- Misses         1639     1951     +312     

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[franmomu]

this looks like it is not related to migrate from 2.4 to 3, if it is only Symfony related should go in https://github.com/doctrine-extensions/DoctrineExtensions/blob/85f783195372b2ed03e410453528dd7452efe4f1/doc/symfony.md

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.