deps: update dependency com.google.protobuf:protobuf-java to v3.11.4

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.protobuf:protobuf-java	patch	3.11.3 -> 3.11.4

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[codecov]

Codecov Report

Merging #48 into master will not change coverage by %.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #48   +/-   ##
=========================================
  Coverage     59.44%   59.44%           
  Complexity      384      384           
=========================================
  Files            46       46           
  Lines          2286     2286           
  Branches        251      251           
=========================================
  Hits           1359     1359           
  Misses          820      820           
  Partials        107      107           

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