deps: update dependency io.grpc:grpc-bom to v1.27.0

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
io.grpc:grpc-bom	minor	1.26.0 -> 1.27.0

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Release Notes

grpc/grpc-java

v1.27.0

Compare Source

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[codecov]

Codecov Report

Merging #45 into master will decrease coverage by 0.97%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #45      +/-   ##
============================================
- Coverage        75%   74.02%   -0.98%     
  Complexity      105      105              
============================================
  Files             7        7              
  Lines           920      920              
  Branches         15        6       -9     
============================================
- Hits            690      681       -9     
  Misses          210      210              
- Partials         20       29       +9

Impacted Files	Coverage Δ	Complexity Δ
...ery/datatransfer/v1/DataTransferServiceClient.java	61.4% <0%> (-3.95%)	55% <0%> (ø)

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