deps: update dependency com.google.guava:guava-bom to v28.2-android

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.guava:guava-bom	minor	28.1-android -> 28.2-android

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[codecov]

Codecov Report

Merging #54 into master will decrease coverage by 0.93%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #54      +/-   ##
============================================
- Coverage     49.43%   48.49%   -0.94%     
+ Complexity      153      147       -6     
============================================
  Files            18       18              
  Lines          2031     1932      -99     
  Branches          5        5              
============================================
- Hits           1004      937      -67     
+ Misses         1024      992      -32     
  Partials          3        3

Impacted Files	Coverage Δ	Complexity Δ
...e/cloud/datacatalog/v1beta1/DataCatalogClient.java	83.26% <0%> (-1.07%)	79% <0%> (-4%)
.../datacatalog/v1beta1/stub/GrpcDataCatalogStub.java	97.63% <0%> (-0.22%)	29% <0%> (-1%)
...acatalog/v1beta1/stub/DataCatalogStubSettings.java	83.97% <0%> (-0.16%)	33% <0%> (-1%)
...log/v1beta1/stub/PolicyTagManagerStubSettings.java	0% <0%> (ø)	0% <0%> (ø)	⬇️
...catalog/v1beta1/stub/GrpcPolicyTagManagerStub.java	0% <0%> (ø)	0% <0%> (ø)	⬇️
...a1/stub/GrpcPolicyTagManagerSerializationStub.java	0% <0%> (ø)	0% <0%> (ø)	⬇️
...tub/PolicyTagManagerSerializationStubSettings.java	0% <0%> (ø)	0% <0%> (ø)	⬇️

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