chore(deps): update dependency com.google.cloud:libraries-bom to v16

[renovate-bot]

This PR contains the following updates:

Package	Update	Change
com.google.cloud:libraries-bom	major	13.4.0 -> 16.1.0

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[generated-files-bot]

Warning: This pull request is touching the following templated files:

• samples/snippets/pom.xml

[codecov]

Codecov Report

Merging #266 (97bff31) into master (83a0a61) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #266   +/-   ##
=========================================
  Coverage     56.74%   56.74%           
  Complexity      384      384           
=========================================
  Files            48       48           
  Lines          2395     2395           
  Branches        265      265           
=========================================
  Hits           1359     1359           
  Misses          929      929           
  Partials        107      107           

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Warning: This pull request is touching the following templated files:

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• samples/snippets/pom.xml

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