Fix a problem with php 8 and civicrm 5.67.1

[jaapjansma]

When I installed this in our demo environment I discovered a compatibility issue with php 8 and civicrm 5.67.1 and Drupal 10.

Not sure whether this breaks other compatibility, such as Drupal 7, or wordpress or older versions of CiviCRM.

[eileenmcnaughton]

Thanks @jaapjansma - these files are pulled in by composer so I'm guessing we need to change the version of symfony? There is a big-picture issue around how extensions with composer packages install - here I have committed them which is easy for some frameworks but tricky for others. So consistent with that we would update any package within the extension by doing a composer update & committing the results. I'm just wonder what the various versions of symfony that are involved are.

I might raise over on dev that WMF uses the composer merge plugin package (& then does not commit any vendor directories to our git) - I don't know if that package could be used more broadly

[jaapjansma]

@eileenmcnaughton I am not very familiar with composer and extension within a framework. But the composer merge plugin sounds reasonable. Maybe @totten or @mattwire have any thoughts that.

[stesi561]

This PR is now out of date but this issue is related: #259

[stesi561]

@eileenmcnaughton is it worth updating this PR to update symfony/http-foundation or is there ongoing work here to address the underlying issue? I think currently for D10 we'd need symfony/http-foundation 6.4.x but I'm keen to explore options for composer merge plugin package.