Ignore new max_iters warning

[JoshuaLampert]

With the update to OrdinaryDiffEqCore.jl v3, the warning message if max_iters is exceeded, was changed. So we need to ignore the new one here. I kept the old one to maintain compatibility with OrdinaryDiffEqCore.jl <v3.
This should fix CI in trixi-framework/Trixi.jl#2740.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.86%. Comparing base (074951f) to head (1c5086e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #23   +/-   ##
=======================================
  Coverage   98.86%   98.86%           
=======================================
  Files           3        3           
  Lines          88       88           
=======================================
  Hits           87       87           
  Misses          1        1           

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[ranocha]

Thanks