CompatHelper: bump compat for CSV to 0.9, (keep existing compat)

[github-actions[bot]]

This pull request changes the compat entry for the CSV package from ~0.8 to ~0.8, 0.9. This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry. It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov[bot]]

Codecov Report

Merging #257 (5f9f678) into master (5016b05) will decrease coverage by 0.25%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #257      +/-   ##
==========================================
- Coverage   77.45%   77.19%   -0.26%     
==========================================
  Files          43       43              
  Lines        3446     3307     -139     
==========================================
- Hits         2669     2553     -116     
+ Misses        777      754      -23     

Flag	Coverage Δ
unittests	77.19% <ø> (-0.26%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/utils/utils.jl	64.28% <0.00%> (-1.60%)	:arrow_down:
src/utils/print.jl	51.08% <0.00%> (-1.20%)	:arrow_down:
src/utils/generate_structs.jl	84.40% <0.00%> (-0.95%)	:arrow_down:
src/internal.jl	78.00% <0.00%> (-0.85%)	:arrow_down:
src/probabilistic.jl	77.19% <0.00%> (-0.78%)	:arrow_down:
src/scenarios.jl	83.67% <0.00%> (-0.65%)	:arrow_down:
src/utils/recorder_events.jl	91.11% <0.00%> (-0.56%)	:arrow_down:
src/deterministic.jl	81.53% <0.00%> (-0.56%)	:arrow_down:
src/deterministic_single_time_series.jl	75.86% <0.00%> (-0.41%)	:arrow_down:
src/single_time_series.jl	66.66% <0.00%> (-0.35%)	:arrow_down:
... and 16 more