deps: update dependency com.google.cloud:google-cloud-shared-dependencies to v0.21.1

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.google.cloud:google-cloud-shared-dependencies	0.21.0 -> 0.21.1

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Release Notes

googleapis/java-shared-dependencies

v0.21.1

Compare Source

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[codecov]

Codecov Report

Merging #438 (f011595) into master (36d5bbd) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #438   +/-   ##
=========================================
  Coverage     72.70%   72.70%           
  Complexity     1162     1162           
=========================================
  Files            24       24           
  Lines          3583     3583           
  Branches        533      533           
=========================================
  Hits           2605     2605           
  Misses          757      757           
  Partials        221      221           

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