add method `cache_internals(::FunctionOp, ::AbstractArray)`

[vpuri3]

fix https://github.com/SciML/DiffEqBase.jl/actions/runs/5337907412/jobs/9674567530?pr=913#step:6:875

[codecov[bot]]

Codecov Report

Merging #207 (cbbbe92) into master (4ec2740) will increase coverage by 0.23%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #207      +/-   ##
==========================================
+ Coverage   68.97%   69.21%   +0.23%     
==========================================
  Files          10       10              
  Lines        1528     1533       +5     
==========================================
+ Hits         1054     1061       +7     
+ Misses        474      472       -2     

Impacted Files	Coverage Δ
src/func.jl	81.06% <100.00%> (+1.23%)	:arrow_up:

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