deps: update core dependencies

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.auth:google-auth-library-oauth2-http	minor	0.19.0 -> 0.20.0
io.grpc:grpc-bom	minor	1.26.0 -> 1.27.0
com.google.cloud:google-cloud-core	patch	1.92.2 -> 1.92.3
com.google.cloud:google-cloud-core-http	patch	1.92.2 -> 1.92.3

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Release Notes

grpc/grpc-java

v1.27.0

Compare Source

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[codecov]

Codecov Report

Merging #122 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #122   +/-   ##
=========================================
  Coverage     77.43%   77.43%           
  Complexity     1110     1110           
=========================================
  Files            73       73           
  Lines          5930     5930           
  Branches        645      645           
=========================================
  Hits           4592     4592           
  Misses         1013     1013           
  Partials        325      325

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