fix: consumer committed metrics should use committed and not last_sta…

[marcosschroh]

…ble_offset

[codecov]

Codecov Report

Merging #120 (84beb8b) into master (f8f3158) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #120      +/-   ##
==========================================
+ Coverage   94.31%   94.32%   +0.01%     
==========================================
  Files          20       20              
  Lines         703      705       +2     
==========================================
+ Hits          663      665       +2     
  Misses         40       40              

Flag	Coverage Δ
unittests	94.32% <100.00%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
kstreams/prometheus/monitor.py	100.00% <100.00%> (ø)
kstreams/test_utils/test_clients.py	84.15% <100.00%> (+0.15%)	⬆️

... and 1 file with indirect coverage changes