Add version 1.9 to CI workflow matrix

[ViralBShah]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.42%. Comparing base (7bd4322) to head (5c5bfbe).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #91      +/-   ##
==========================================
+ Coverage   77.96%   78.42%   +0.46%     
==========================================
  Files           7        7              
  Lines         422      431       +9     
==========================================
+ Hits          329      338       +9     
  Misses         93       93              

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