Update SpotBugs to 4.2.0

[codecov-io]

Codecov Report

Merging #228 (0b66c25) into master (4d9cc62) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #228   +/-   ##
=========================================
  Coverage     72.38%   72.38%           
  Complexity      608      608           
=========================================
  Files           146      146           
  Lines          1988     1988           
  Branches        131      131           
=========================================
  Hits           1439     1439           
  Misses          489      489           
  Partials         60       60           

Impacted Files	Coverage Δ	Complexity Δ
...pl/touk/sputnik/connector/gerrit/GerritFacade.java	47.36% <0.00%> (ø)	8.00% <0.00%> (ø%)

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[SpOOnman]

Thank you!