allow specifying type argument in GLMM predict on original data

[palday]

closes #817

• add entry in NEWS.md

[dmbates]

I guess I should have been more careful about the approval. I didn't notice the test failures. Let me know if you want me to take a look.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.54%. Comparing base (6408a34) to head (be52f8b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #856   +/-   ##
=======================================
  Coverage   95.54%   95.54%           
=======================================
  Files          38       38           
  Lines        3700     3703    +3     
=======================================
+ Hits         3535     3538    +3     
  Misses        165      165           

Flag	Coverage Δ
current	95.21% <100.00%> (+<0.01%)	⬆️
minimum	95.54% <100.00%> (+<0.01%)	⬆️

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