Prepare release 2.5.0

[vaszig]

Closes open-formulieren/open-forms#4920 partly

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.95%. Comparing base (e33ecee) to head (e88000d).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #759      +/-   ##
==========================================
+ Coverage   79.51%   79.95%   +0.43%     
==========================================
  Files         239      238       -1     
  Lines        4979     4953      -26     
  Branches     1351     1343       -8     
==========================================
+ Hits         3959     3960       +1     
+ Misses        989      961      -28     
- Partials       31       32       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[sergei-maertens]

Otherwise this looks good. I'm not sure if we're able to release this already because there's an additional ticket that Joeri wants in the release, and that one will have impact on the SDK I think.