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

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.protobuf:protobuf-bom (source)	patch	3.11.1 -> 3.11.3

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Release Notes

protocolbuffers/protobuf

v3.11.3

Compare Source

C++

• Add OUT and OPTIONAL to windows portability files (#​7087)

PHP

• Refactored ulong to zend_ulong for php7.4 compatibility (#​7147)
• Call register_class before getClass from desc to fix segfault (#​7077)

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[codecov]

Codecov Report

Merging #87 into master will decrease coverage by 0.15%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             master     #87      +/-   ##
===========================================
- Coverage     75.96%   75.8%   -0.16%     
+ Complexity      571     519      -52     
===========================================
  Files            42      42              
  Lines          3353    3249     -104     
  Branches        237     212      -25     
===========================================
- Hits           2547    2463      -84     
+ Misses          660     644      -16     
+ Partials        146     142       -4

Impacted Files	Coverage Δ	Complexity Δ
...loud/logging/v2/stub/GrpcLoggingServiceV2Stub.java	88.79% <0%> (-0.81%)	10% <0%> (-1%)
...loud/logging/v2/stub/GrpcMetricsServiceV2Stub.java	91.66% <0%> (-0.59%)	11% <0%> (-1%)
...ava/com/google/cloud/logging/v2/LoggingClient.java	53.84% <0%> (-0.56%)	15% <0%> (-4%)
...cloud/logging/v2/stub/GrpcConfigServiceV2Stub.java	94.85% <0%> (-0.42%)	16% <0%> (-1%)
.../logging/v2/stub/MetricsServiceV2StubSettings.java	81.81% <0%> (-0.41%)	15% <0%> (-1%)
.../logging/v2/stub/LoggingServiceV2StubSettings.java	77.98% <0%> (-0.4%)	15% <0%> (-1%)
...d/logging/v2/stub/ConfigServiceV2StubSettings.java	83.16% <0%> (-0.33%)	20% <0%> (-1%)
...ain/java/com/google/cloud/logging/LoggingImpl.java	87.64% <0%> (-0.26%)	61% <0%> (-12%)
...c/main/java/com/google/cloud/logging/SinkInfo.java	81.92% <0%> (-0.11%)	17% <0%> (-2%)
...ain/java/com/google/cloud/logging/HttpRequest.java	91.44% <0%> (-0.05%)	44% <0%> (-12%)
... and 5 more

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