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 #42 into master will decrease coverage by 0.31%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #42      +/-   ##
============================================
- Coverage     77.77%   77.46%   -0.32%     
+ Complexity      203      172      -31     
============================================
  Files             6        6              
  Lines          1836     1717     -119     
  Branches         29       10      -19     
============================================
- Hits           1428     1330      -98     
+ Misses          370      354      -16     
+ Partials         38       33       -5

Impacted Files	Coverage Δ	Complexity Δ
...oud/irm/v1alpha2/stub/GrpcIncidentServiceStub.java	95.93% <0%> (-0.36%)	35% <0%> (-1%)
...irm/v1alpha2/stub/IncidentServiceStubSettings.java	80.04% <0%> (-0.13%)	41% <0%> (-1%)
...ogle/cloud/irm/v1alpha2/IncidentServiceClient.java	68.34% <0%> (+0.89%)	90% <0%> (-29%)	⬇️

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