Handle new IndexError message for empty decks in opm 2022.04

[asnyv]

Error message for requested deck keyword out of range apparently became less descriptive in opm 2022.04
Could alternatively keep the old message as well to support 2021.10, but find it ok to force 2022.04 to be able to catch it if opm switches back to the more descriptive message (have a feeling that it might not have been intended from opm's)

[ertomatic]

Can one of the admins verify this patch?

[codecov-commenter]

Codecov Report

Merging #497 (35094c3) into master (1c2591b) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 35094c3 differs from pull request most recent head a28ed3c. Consider uploading reports for the commit a28ed3c to get more accurate results

@@            Coverage Diff             @@
##           master     #497      +/-   ##
==========================================
- Coverage   87.56%   87.55%   -0.02%     
==========================================
  Files          49       49              
  Lines        7028     7030       +2     
==========================================
+ Hits         6154     6155       +1     
- Misses        874      875       +1     

Impacted Files	Coverage Δ
src/subscript/sunsch/sunsch.py	94.77% <100.00%> (-0.34%)	⬇️

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[berland]

If not hard, it is beneficial to be compatible with both versions, allowing more flexibility in komodo deploy.