feat(example/transaction/ent): add ent install in Makefile

[sashamelentyev]

Description (what this PR does / why we need it): add ent install in Makefile

Which issue(s) this PR fixes (resolves / be part of):

fixes #

Other special notes for reviewer:

[codecov-commenter]

Codecov Report

Merging #1844 (9118fea) into main (f331347) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1844      +/-   ##
==========================================
+ Coverage   80.78%   80.84%   +0.05%     
==========================================
  Files          80       80              
  Lines        3565     3565              
==========================================
+ Hits         2880     2882       +2     
+ Misses        479      477       -2     
  Partials      206      206              

Impacted Files	Coverage Δ
internal/context/context.go	100.00% <0.00%> (+2.98%)	⬆️

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