fix(service): update publish workflow to use correct working directory

[strieflin]

No description provided.

[codecov]

Codecov Report

Merging #55 (e9d096c) into master (8161dca) will increase coverage by 0.09%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #55      +/-   ##
============================================
+ Coverage     81.30%   81.40%   +0.09%     
  Complexity       24       24              
============================================
  Files            34       34              
  Lines          3055     3055              
  Branches         10       10              
============================================
+ Hits           2484     2487       +3     
+ Misses          485      482       -3     
  Partials         86       86              

Flag	Coverage Δ
java-client	85.71% <ø> (ø)
service	81.23% <ø> (+0.10%)	⬆️

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see 1 file with indirect coverage changes

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