deps: update dependency com.google.protobuf:protobuf-java to v3.11.3

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.protobuf:protobuf-java	patch	3.11.1 -> 3.11.3

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[codecov]

Codecov Report

Merging #62 into master will decrease coverage by 1.26%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             master     #62      +/-   ##
===========================================
- Coverage     69.16%   67.9%   -1.27%     
+ Complexity       42      38       -4     
===========================================
  Files             6       6              
  Lines           253     243      -10     
  Branches          1       1              
===========================================
- Hits            175     165      -10     
  Misses           77      77              
  Partials          1       1

Impacted Files	Coverage Δ	Complexity Δ
...d/webrisk/v1beta1/WebRiskServiceV1Beta1Client.java	63.41% <0%> (-2.5%)	12% <0%> (-3%)
...sk/v1beta1/stub/GrpcWebRiskServiceV1Beta1Stub.java	85.71% <0%> (-1.06%)	9% <0%> (-1%)
...1beta1/stub/WebRiskServiceV1Beta1StubSettings.java	79.78% <0%> (-0.43%)	12% <0%> (ø)

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