Evaluate changes to support less verbose BrowserKit from Symfony ^8.2

[alexisLefebvre]

In Symfony 8.2 BrowserKit will be less verbose, see:

• issue: [BrowserKit] Custom assertions are way too verbose symfony/symfony#62433
• PR: [FrameworkBundle] Make BrowserKit assertions non-verbose by default symfony/symfony#64222

It may require some changes on API Platform:

• adapt ApiTestCase to support this change?
• update the documentation?
• etc.

These are only rough ideas, this issue is created to keep track of it. It’s possible than no change will be required at all.