Update JuMP compat bounds

[odow]

Part of https://github.com/jump-dev/JuMP.jl/pull/2955

Avoids issues with #178

[codecov[bot]]

Codecov Report

Merging #179 (81c94c2) into master (2d25399) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 81c94c2 differs from pull request most recent head 83be46e. Consider uploading reports for the commit 83be46e to get more accurate results

@@           Coverage Diff           @@
##           master     #179   +/-   ##
=======================================
  Coverage   86.81%   86.81%           
=======================================
  Files          11       11           
  Lines        1714     1714           
=======================================
  Hits         1488     1488           
  Misses        226      226           

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