Update tests to new Param 2 error messages

[maximlt]

No description provided.

[hoxbro]

Is the test failing because a new release is needed?

I have added a param ==1.13 pin for the Bokeh 2 tests in #5844. So we need to add if bokeh3 to get all tests to pass.

[maximlt]

Yep they're failing because they're relying on code that hasn't been released yet! But I don't want to force Panel to rely on the latest Param all the time so I'll adapt them to be compatible.

[codecov-commenter]

Codecov Report

Merging #5865 (79990bc) into main (e2f06d0) will decrease coverage by 0.01%.
Report is 1 commits behind head on main.
The diff coverage is 70.58%.

@@            Coverage Diff             @@
##             main    #5865      +/-   ##
==========================================
- Coverage   88.36%   88.36%   -0.01%     
==========================================
  Files         310      310              
  Lines       63950    63962      +12     
==========================================
+ Hits        56512    56519       +7     
- Misses       7438     7443       +5     

Flag	Coverage Δ
ui-tests	23.40% <11.76%> (-0.01%)	⬇️

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Files Changed	Coverage Δ
holoviews/tests/test_streams.py	98.14% <66.66%> (-0.41%)	⬇️
holoviews/tests/element/test_annotations.py	98.30% <80.00%> (-1.70%)	⬇️

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